Need some help

[mark1187]

hey, I have a 50 gallon tank with 2 cown fish, wrasse, rhino blenny, orange diamond goby, jawfish, and black brittle star fish.. one of my problems is I cannot find my jaw fish or diamond goby anymore.. it's like they have totally disapeared... it has been about 2 weeks since I have seen them. Ive done all my water tests and evrything is normal.. any advice?

Also I noticed something on the sand that almost looked like a little bug smaller then an ant running all over te place.. I have no idea what it is??

Thanks
-Mark

[Bloodasp]

Do you see any tunnels in your sand underneath your rocks?

[The Grizz]

Have you checked behind and under your stand, that is where I found my orange spot goby a few weeks ago after having it for 6 month or more.

The bug could be pods?

[mark1187]

there is few tunnels under the rocks.. ive checked all over the floors and couldnt find anything..

The thing that looked like a bug also looked like a super small shrimp

Sorry im pretty new to the salt tanks

[abcha0s]

The bug would most likely be a "pod". Copepod or amphipod. Most are benifical and desirable. Watch out for Cirolanid isopods. Although rare, they eat living fish.