fish dying...need help

salinity between 1.025 and 1.026 temp 76-80. I have the return pump + powerhead.enough flow for sure. a helfrichi firefish died and a two spotted blenny. the fish knew it was dying; it displayed the same symptoms cats and dogs exhibit right before they die. it certainly seemed like something internal. toxin or otherwise not sure. the LFS is reputable in these parts but you never know how their supplier collects the fish.

 

If all other factors considered to be OK above...

May have stray electrical current in tank...test for and get a ground probe - you will be wanting one anyway.

Or, might want to consider insufficient gas exchange for size tank, number of fish.

Direct some flow at surface...add an air stone to either sump or tank.

Good Luck! :-/

 

thanks guys. ill let you know how it goes.

 

Best of luck to you.

 

what other fish are in your tank. it could be a bully issue. firefish and blenny are quite peaceful most semi aggressive fish would bully to death