Blue throat trigger acting odd

[mcs]

We have had a blue troatctrigger for about a year. He periodically will hide for a day, but after hiding for two days he is now lying on the bottom in the corner. He does not appear to have any damage. We gave a 300 gal tank with a fix face, a joke rang, four green chromis and the trigger. Any suggestions as to how I might help him?

 

[Fishy212]

Any recent changes? Your salinity ? Try aiming your power head at the water surface, increase the oxygen level? Obviously these are temporary, quick fixes. I hope it helps :/ good luck man!

 

[mcs]

Chemistry has been stable, but will check again. Thank you for your help.