crabs

So uhm, I actually posted about this one the other day. But I now have clearer pictures of these tiny 'maroon / brown' crab hitchhikers. They are only ¾ to an inch in size and their 'shells' are full of bumps. I assume some of them are females because I can see them carrying black eggs...

Can someone identify these hitchhikers? I got them from the live rock I purchased. Are these good or bad?

Hi everyone! I meant to get around to this sooner, but life has kept me busy, so now I'm finally making my build thread! I inherited this little 15-gallon (18 including the rear sump) from a friend on Halloween of last year, just under half a year ago. It was dirty with algae-infested rocks and...

Hi, When I set up my tank, I purchased premium uncured live rock. I did a great job curing it without killing much of the amazing small corals, multiple kinds of macro Algae (some I have never seen before like red moss). Anyway, I added a ball of chaeto directly into the tank but with the...

I’ve had my tank set up for over a year, and never had added any crabs. My tank is a mostly fish only tank, with 2 anemones and some GSP. So I was caught by surprise one night when I spotted a mysterious crab on the rocks. My theory is that maybe when I was adding pods to the tank, there might...

Check out my hermit crab giving out rides around the aquarium for a shell clean and polish lol

Hello! I run a 20 gallon tank with a few easy keeper corals. I’ve had the tank for close to a year now and last night I noticed a crab hiding between the rock work in my aquarium. Based on what I’ve read it’s rare for these guys to be beneficial and was wondering if anyone had advice for finding...

Hi Experts, Found this crab today (about 1.5cm)... not sure if it is good or bad. Thanks.

Questions at the bottom, here are some tank stats: (If anything is wrong here don't crucify us, we are new and have done the best research we can) So we've had our tank since mid-February: 32.5 Gallon tank Canister filter good for up to 75 gallons 20ish pounds of liverock Fish- in order they...

What is this hermit crab? Is it reef safe? Any information is welcomed! Thank you!

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What inverts can be housed with carpet anemones? Looking to add shrimp and crabs. Also what fish can safely be with carpets with out getting eaten ? Thanks in advance

Hey! My names Kamden, I’m a 14 year old with a love for aquariums and marine life My aquarium is a 30g Nuvo 30l, This aquarium has a mix of Azoo, SPS, and softie corals. Fish Mimic Filefish Hector’s Goby Blue stripe Pipefish Inverts Mixed snails x12 Emerald Crabs x2 Crinoid (Himerometra...

So my live rock shipment came in with four different types of crabs. Any IDs? Thanks. 1 2 3 4