Freshwater crabs are several of the fascinating types you can keep in your fish tank by far.
When the majority of us think of crabs, we envision deep-sea atmospheres. There are numerous kinds of fresh water and also briny crabs that can flourish in your freshwater container.
These freshwater fish tank crabs often tend to be instead little, which is why you might hear them typically described as “miniature crabs.”
Crabs are scavengers, and it’s entertaining to watch them move around the container gathering any spoils they find dangling about. It’s not just enjoyable either. Crabs can really help keep your container clean!
In this overview, we cover a few of our preferred kinds of freshwater crabs and show you exactly how to maintain them in your fish tank in the house!
Types of Freshwater Aquarium Crabs
While many individuals make their decision on the sight of the crab, spend a while getting to know everyone before committing. Everybody is a little different, with different needs and qualities.
1. Red Claw Crab
A Red Claw crab is a common sight in freshwater aquariums because it is one of the more widely available and well-known freshwater crab species. Red claws can grow to a maximum size of 2-4 inches when kept in real-world situations and can last up to 5 years. In fact, the term comes from their distinctive red claws.
Red Claw Crabs live in brackish water in the wild. Some pet stores and dog breeders keep the animals in freshwater. If you want to give this species the best chance of leading a healthy, balanced, and long life, create a salty environment for them.
All crabs can climb mountains, but Red Claws are known for being particularly adept at ascending rocks and other container types. They are also excellent escape artists, perhaps even more so than other crabs.
2. Fiddler Crab
Fiddlers are reasonably tiny and also typically do not expand any more significant than 2 inches, yet they are exceptionally striking to check out.
One claw is small, delicate, and proportionate to the crab’s body. The other hoof, though, has a chance to get away and is far more important than the others. This enormous claw is also vividly colored, typically in a strong yellow or gold.
Fiddler crabs usually aren’t highly hostile. Like many crabs, these little animals like to conceal out.
Fiddlers live reasonably long lives in the wild yet typically have a life expectancy of simply a couple of years in bondage.
The term “Fiddler Crab” includes some 100 people however comparable– types.
3. Thai Devil Crab
Despite its moniker, the Thai Devil Crab is a relatively gentle pet for fish tanks. They are most definitely on the more approachable side and get along nicely with many other peaceful tank inhabitants.
Thai Devil crabs usually gauge 2 -3 inches at their adult years, although specific selections might reach about 4 inches.
Thai Devil crabs come in a variety of vibrant colors, including crimsons and purples. They can meet after 15 years (though that is definitely on the more excellent end of the range, considering that numerous only real-time five years or two).
4. Vampire Crabs
Keeping vampire crabs is a lot of fun. In addition, they are more rare and probably harder to find than other varieties of freshwater crabs. They come in a variety of colors, most frequently vivid tints of orange, purple, or red.
The scary-sounding name originates from the reality that they have distinct yellow eyes that are in some cases called “beautiful.” Sorry to dissatisfy you if you wished for a blood-sucking shellfish.
Vampire crabs are tiny, gauging in at around an inch broad. When carefully cared for, they usually live for up to 3 years.
Keep in mind that you’ll require to supply a particular environment if you’re interested in obtaining some Vampire crabs. This type is not marine. They need much more completely dry land in their container than water.
Like the majority of crabs, Vampire crabs are scavengers and will undoubtedly consume great deals of points, so make sure to give them a varied diet regimen with both plant tissue and healthy pet protein.
5. Freshwater Pom Crab
Pom crabs are also quite uncommon since they have only recently begun to appear in the circuit of restricted reproduction. These crabs commonly move about in the wild while clutching polyps in their claws.
This makes them look a little bit like they are holding small pom poms, which is charming and precisely how this freshwater crab selection obtains its name.
Pom crabs are tiny creatures with particularly delicate exoskeletons. Many adults will reach 1 inch in height, however some may grow as tall as 1 3/4 inches. They are completely saltwater variants of freshwater crab, and they are also simple to maintain.
6. Thai Micro Crab
The Thai Micro crab is often called the False Spider crab. These names are suitable, given that this type is so minimal.
They are grey or generally brown, with lengthy spindly legs just like a real crawler. They’re likewise covered in extremely tiny hairs, which offer the essential objective of collecting food that drifts by in the water.
Thai Micro crabs are conscious adjustments in water problems.
They would surely have very little ability to do if confronted by an angry next-door neighbor because they are weak and so small. It’s necessary to keep them in storage tanks with just one friend who can be kept under control because of this.
Tiny invertebrates can typically live in harmony with Thai Micro crabs. Some types of little education fish might additionally cohabitate well with them.
Micro crabs aren’t specifically outbound, as well as they might invest an excellent part of the day hiding.
Freshwater crabs are recognized for leaving units. The threat is also higher when they’re this little.
Take added safety measures to guarantee no bit openings in your storage tank that can act as a retreat course for a careless crab.
7. Panther Crab
Panther crabs can reach be greater than 3 inches large at maturation. They have been recognized to live for approximately five years in bondage.
Panthers are a fair bit a lot more territorial and hostile than the various other fish tank crabs detailed right here. They’ll usually deal with among themselves, in addition to with various other tankmates.
It’s finest to select a male/female set or a harem as two men will undoubtedly battle if you put them with each other.
Panther crabs are called due to the forest feline visual of their covering, yellow with brownish or black finding.
8. Marble Batik Crab
The Marble Batik Crab is a semi-terrestrial species that originated in Southeast Asia. As such, it needs access to both land and water and will undoubtedly split its time between the two. It is a fantastic choice for aquariums due to its stunning coloration and generally calm personality.
Given that the Marble Batik Crab is omnivorous, you should feed it both substantial foods and plant-based foods. They are fantastic scavengers and will unquestionably thrive on a combination of premium pellets and significant frozen foods.
Normally, they are supplied in a 1-2 inch range, but in bondage, they will surely grow to 3-5 inches. A 20–30 gallon room is needed if you want to preserve this type, which asks for a team of three (one guy and two women).
9. Blue Spider Crab
Heaven Spider Crab (Neosarmatium rotundifrons) is one more semi-terrestrial type, so you’ll require a paludarium if you intend on maintaining this type.
Because of how uncommon this type is, do not be surprised if you have trouble finding their offer for sale. If you do manage to discover them offline or online, they should be stored in groups of three or more (one guy and two ladies) in a 30 gallon or larger arrangement.
The heaven Spider Crab, like the most of the other species on this page, is a scavenger and quite easy to feed. a balanced diet for omnivores that includes both significant frozen meals and premium dried-out items.
The heaven spider crab is generally antagonistic toward other crabs but typically relaxed with various other participants of the same types. If you plan to keep these pets, they shouldn’t be mixed with any storage tank companions.
10. Red Spider Crab
The Indo-Pacific region is home to the semi-terrestrial Red Spider Crab (Neosarmatium smithi). They can be found throughout the mangroves and spend a lot of time on land, yet they also require access to water.
Unlike many other varieties on this listing, the Red Spider Crab does most OK in a briny arrangement instead of freshwater (although it can endure in freshwater also).
This type is recognized as a terrific mountain climber, so ensure your aquarium does not have any paths for retreat.
11. Red Apple Crab
Another semi-terrestrial form is the Red Apple Crab (Metasesarma Aubry), so both land and water access are necessary. They originate from Malaysia, Indonesia, and Thailand and spend a lot of time on land near streams and fish ponds.
With an adult size of only two inches, this type is quite little. The Red Apple Crab is omnivorous, like many other species on our list, and needs a steady supply of substantial plant-based food in its diet to thrive.
Caring for Freshwater Crabs
Some fundamental guidelines for treating freshwater crabs are included in this section. Keep in mind that each variety is unique. If you choose to keep freshwater crabs, make sure to conduct additional research on those specific varieties.
While it could appear daunting, looking after freshwater fish tank crabs isn’t exceptionally hard. Crabs are much easier to care for than lots of kinds of fish.
Setting Up a Proper Habitat
Before welcoming a freshwater fish tank crab right into your house, obtain every little thing you require to offer a healthy and balanced, comfy living room for your brand-new good friend.
The best option is to get the biggest fish tank that will fit in the available space. As a result, your crabs won’t be restricted as they grow, and you’ll have room to add more tankmates in the future.
The majority of fish tank crabs are not entirely marine, hence they need some dry ground in their container. The simplest method is to just fill the container with sand, piling it much higher in one spot to create a distant seashore for your crab. On the other hand, premade setups are available both online and at local pet shops. You don’t need to create an arid environment in the fish tank if your container just contains Freshwater Pom crabs or other aquatic creatures.
Once you’ve built up a dry area, you can fill the water area with water; however, if the water becomes unclean after being put into the sand, give it time to work out before putting any type of type of crabs inside. If you prefer, you can place a big container in the lower area of the container and fill that with water, keeping in mind that this can be hazardous to fish tank crabs.
You should utilize water that has been filtering system. This is very crucial since faucet water has chlorine, which can be unsafe for crabs.
Crabs like warmer water, typically in between 72 as well as 82 levels. Ask the dog breeder or pet dog shop for particular temperature level needs when you buy your crab.
If the fish tank will truly be installed in a region that tends to be on the cooler side, you may need to use a heating unit. If the kinds of crab you’ve chosen require saline water, you’d need to add a tiny bit of sea salt. To ensure you get the right ratio of salt to water, consult the instructions on the package.
Crabs enjoy exploring and climbing, so make sure you provide them with some fun playthings. Some people want to add piping (like PVC pipeline) to the container so that crabs can crawl on it and hide within.
Introducing Crabs to the Tank
When your environment prepares, you can place the crabs inside! Right here are some suggestions to aid the procedure go extra efficiently.
It would be best if you had the container ready to travel before transporting your crabs. Do not leave your crabs in a product packaging container if they arrive before the construction of their brand-new home is complete.
When your crabs are waiting to be positioned in the fish tank, make sure to keep them from leaving. It can be quite difficult to find a small crab when it disappears from your view, and it’s unlikely that the crab would survive for very long after leaving.
If you’re putting more than one crab in the environment, keep an eye on their habits to make sure they won’t be antagonistic toward one another. If they don’t get along, you might have to move one to a separate storage tank.
Feeding Your Pet Crabs
Freshwater crabs enjoy eating both plant and animal matter, and they will also happily eat anything floats around in the storage tank. You might also elect to add store-bought food to their diet as a supplement. Here are a few of the essential foods that the majority of aquarium crabs will certainly consume:
- Algae wafers
- Algae (including algae might trigger algae to expand in the water, which is not a poor point because crabs enjoy treating algae).
- Saltwater shrimp.
- They prepared zucchini squash.
- Peas (prepared).
- Crab food solutions from family pet supply merchants.
- Small fish items (some crabs might also consume online fish if they are tiny. Sufficient to maintain this in mind when vetting tankmates).
Utilizing a calcium supplement is additionally an excellent suggestion, as crabs require sufficient calcium to molt as well as expand healthy and balanced brand-new exoskeletons.
When you feed your crabs, observe carefully to see which things they enjoy and which they do not eat. Make sure to remove any expired food that has been lingering around the storage tank for longer than two days. A crab in need of food may well ingest some food that has gone bad, which could lead to illness.
When it comes to feeding, it’s far preferable to start out with a small amount and add more as necessary. Including too much food could cause issues for your animal that could be hazardous. Additionally, it can degrade the appearance and smell of your fish tank, neither of which are desirable.
Finding Suitable Tankmates
Numerous freshwater crabs are calm and may coexist peacefully with a variety of other calm fish and shellfish. The majority of the time, tiny freshwater shrimp make excellent fish tank crab neighbors. Do not keep your crab in the same tank with aggressive fish like cichlids.
When you get a new crab, ask the dog breeder or pet store which aquatic critters they suggest keeping with your dog. Always watch carefully after introducing a new creature into your aquarium.
Maintaining the Tank
Maintain a healthy, balanced, and clean environment for your crab by making regular water changes. Remove any water that seems or smells dirty, and replace it with fresh water from a filtration system. Additionally, you should replace the sand as needed.
Warning Signs of Health Problems in Freshwater Crabs
Screen your crabs for signs they might not be healthy and balanced. Below are some points to look out for.
- Reduced or missing hunger.
- Continuous consuming.
- Uncoordinated or abnormally sluggish activity patterns.
- Fading shade is unrelated to molting or unusual brand-new markings on the cover.
One of the most typical root causes of illness and ailment in freshwater fish tank crabs consists of inappropriate water problems, inadequate diet regimen, and contact with unwell tankmates.
Like various other shellfishes, freshwater crabs drop their exoskeleton as they expand. Here are some indications to enjoy, so you can inform your crab is preparing to molt.
The exoskeleton looks discolored and also lightened.
I am digging under the substratum, hiding, as well as tunneling.
I consumed great alcohol deals, took in watermeal, and deliberately spilled water meals onto arid locations.
Crabs that are molting should be left alone whenever possible. Your crab will likely want to retreat into its own tiny world during this time and also won’t be nice with you or the other fish in the tank.
Your crab might consume its shed exoskeleton. Do not be grossed out; this is a means for them to obtain sufficient crucial calcium.
You should be aware that some molting symptoms are similar to those of certain illnesses. If you’re unsure whether your fish tank crab is ill or is simply molting, have a professional look at your pet to help you.
A Few Final Notes About Freshwater Aquarium Crabs
Completely clean every little thing before you present it to your crab container. Clean and sterilize it before establishing up the environment if you acquire a utilized fish tank.
Crabs can grow back without their claws and legs, so do not be alarmed if you find one missing. The arm or leg may not completely regrow for a few molting cycles.
When you consider the size of a freshwater crab, be aware that the dimension normally includes of of the shell, which is the shell that covers the crab’s central body.
Although these freshwater crabs don’t require much maintenance, being a good crab owner means spending time (and money!) to make sure your pet dog has all it needs to lead the most fantastic life possible. You’ll receive an interesting little companion in exchange, which makes the hassle worthwhile.