crab

Need help identifying this guy. He is about the size of a quarter/half dollar. piercing red eyes. his appendages look too thin and long to be a gorilla but i could be wrong. kind of looks like a mithrax. sorry about the green going through uglies and my blues were on in this photo so i had to...

This little crab (looks juvenile) has red claws and striped legs! They are not hairy. He came off of a Xenia Coral and saw him come out when doing a coral dip.

I got luck and caught an emerald crab spawing in my tank. Super weird and super cool, never seen this before! Not sure if the video will come through properly

Had this little crab come in on a Pectinia, thought it was dead from dip but it's now walking around, though it does appear to have lost a claw. Any idea what it is and is it good or bad?

so ive had my 10 gallon tank running for 6 months i have the salt aquarium sand salinity solid 1.025 temp 75 ammonia was 0 before the crabs died. sponge filter Hob filter (with ceramic media rings and activated carbon) and air stone everything else seemed good with my tetra strips which I know...

Please help me identify this crab, it came on a zoa colony

Hey Everyone! I got TBS live rock @LiverockRocks for my tank in June and love all of the life that is now in my tank because of it! Today, when I was feeding my tank, I noticed a small crab that I imagine hitchhiked in on the TBS live rock (although, of course, I cannot be 100% certain of...

Berghia Nudibranch, Shipping available. All sized at least 1/2 inch mostly larger. ~25 ready to go $20 for 1 $80 for 5 $140 for 10 Also available: Blue Leg Hermits and Astrea Snails Mix & Match (Snails & Crabs): • 12 for $10 • 30 for $20 • 75 for $50 Pick your own combo — same price...

Tank wants to show you his new trick 🩰 🦀

Petrolisthes is a genus of crabs that is found in all the world's oceans save the Arctic and Antarctic. They are small, easy to care for, and can be beautifully colored. The ones that we all call Porcelain Crabs are generally a pale gray to ivory, often with brilliant pink or red spots and short...

Hi everybody, I’ve just found this guy in the tank, what do you suggest? Leave the crab there, maybe beneficial as a cleaner, or dangerous for fishes and corals and try to put it in the sump

Hello everyone! I hope you are doing well. I am thinking about adding some Porcelain Anemone Crabs and/or Pom-Pom crabs in a 10 gallon. I am also thinking of potentially adding a Sexy shrimp but am leading against it since the aquarium is so small. The issue is that, I have no idea how many...

Hello everyone! I hope you are doing well. Do crabs attack snails? Do pom-pom crabs attack snails? Which species are snail-friendly? Thank you all so much for any help.

I ordered some rock and critters and they sent another crab that I didn’t order. It’s orange and white with striped legs, any ideas? It’s not going in until I know what it is.

Not my crab but I'm curious. From the reef tank subreddit: Pics:

One of my PomPom crabs has been carrying a big red belly of babies the last 2-3 weeks. Noticed it was acting weird at the top of the tank at lights off last night. Managed to get a short video of it expelling all the babies! Camera angle and the lights being off made for a difficult shot, but...

Can anyone ID this crab, it was a hitchhiker who came in on the rock of a favia from the LFS. This is in Australia (which should hopefully narrow it down a bit) It is quite small, 15-20mm (1/2-3/4 inch) from back to tip of claw ~5mm (1/4 inch) across the body I have taken it off the Favia and...

Have a little guy to sell, if anyone wants it within next few days

Hey everyone, need help identifying this crab, was sold to me as a emerald crab, I have some doubts. Emeralds crabs are pretty hard to find in Australia, soo thought I would take the chance and buy it, just seeing if anyone can confirm if its a emerald crab, or a pest crab. Thank you in advance

Tried to get a decent pic of it. It’s living under some GSP. Any help is appreciated thank you!

Hello .. I’m getting back to the hobby and resurrecting my 15 yrs old 70g tank. planning to add variety of crabs, a couple of fish, and star fish. However, some crabs need to breath air so any ideas how to set that up? I was thinking of leaving the tip if a rock out of the water. Any suggestions?

Hi guys, i havent seen my strawberry crab since i put him in my tank. Yesterday i found his shell. Do they change their shells or is it died?

I have recently bought this crab from my LPS and they labeled it as a Sand Sifting Crab, which it is but I was wondering if someone could ID it so I can do more research on its compatibility within my tank. They told me they believed it was reef safe with caution, but they also didn't have much...

Hi all, I noticed I have a tiny (1/2") all white and pale crab in my tank. Because of his color and size, I couldn't get a clear picture. I have no idea where did he come from (larvae stuck in my last purchase?). He doesn't seem to bother other CUC (he is smaller) neither my corals. He looks...

Hello, i have an unusual pet which is a Red Rock Crab (Cancer productus) and just aquatic crabs in general are very hard to find good information about other than cooking. I've had him for about 9 months now. I keep the water temperature and salinity matched to his natural home (Puget Sound)...