Is My Quarantined Goby Safe to Release?


New member
Here is an interesting issue I did not really expect to have... I have a diamond goby I have been quarantining in my frag tank. Yes I know it not the best place to put him due to not being able to treat the little guy with meds due to the coral in the tank. I just seriously do not have a foot of space to setup another tank no matter how temporary it might be. With that said the frag tank has been up for almost 6 months and has pretty stable params that I check weekly.

Anyways... He looks to be in good shape and has been in the tank for near 4 weeks. I have seen him eating frozen food and pellet foods while sifting sand. However, he spends most of his time hiding out under a piece of rock in the tank and I some times I will not see him for a day or so. I know he has been active at some time because the sand is very clean and white :)

I had plans to release him into my main tank on week 4, but since I only see him every few days and he does not always come out when I put food in the tank I am wondering if something is wrong. I saw him last night and he seems to show no signs of being skinny or hurt and was sifting sand. He MIGHT have been breathing a LITTLE fast, but I might of just caught him finishing up sifting more sand. I know most fish you would see if they are not very active and sitting on the bottom of the tank.... but he is a goby after all :)

Can anyone give me any input if there is something I should check for or if maybe I should just wait? My display tank is working out very well and I do not want to risk it on any one fish. On the flip side I also do not want to keep this poor goby on lock down in my QT tank forever if he is just shy.

Thanks in advance,


Meat Popsicle
It is common for those guys to behave this way. Personally I won't put any fish in my DT's without treating with praziquantel first, but presumably you didn't plan on treating for anything and are comfortable with that. I would wait another four weeks, but if your frag tank doesn't have much to eat in the sandbed the goby may starve since he/she is only eating occasionally when you feed.


New member
My goby has died and went mia... I assume it was the few crabs that keep everything neat in there :(

My best guess is he was not eating enough and starved which makes me very sad because he was doing ok for the first 2~3 weeks. I REALLY need a goby or something in my tank to stir up the sand. However, the risk of my main tank getting sick is not something I will be risking or even debating.

What is the best way to going about QTing a diamond goby since my method left me down $20 with a dead fish :( I would really love to hear some solid ideas, so I can start the QT process again.

small alien

The fungus is among us.
QTing specialized feeders like that does seem quite challenging. I'm interested to see if anyone has any great ideas. Sorry about your goby.