Sailfin tang help

ok so things are not looking good for my Sailfin. last two days he has been hiding in the back of my tank but still swimming around. got up this morning to look for him and found him in a very small cave on his side but still moving. this cave is all the way to the bottom of my tank and cannot be reached without tearing the whole thing apart. the only thing that has changed was the addition of two coral frags: Anthelias and Nepthea. could they have caused this? should I leave him for now? get him now?

Water params:
nitrate:20ppm
Nitrite:0
ammonia:0
PH:7.8 been consistantly at this
water temp79-80

 

ok well I guess it doesnt matter now. My brittle star found him. he is dead now and the star it eating it....great. is the star eating going to be a problem?

 

it could have been you nitrates tangs are weak fish, but better luck next time i had one die on me as well about a two years ago

 

my ph since I moved to the 75 has been at 7.8 it got up to 8 but now is back down to 7.8. hopefully I will have the nitrate taken care of in a few weeks. I have a 20 gallon tank, baffles cut, and am on my way to get some silicone for my refuge. hate losing fish!! do I have aything to worry about with the Brittle star eating it?????

 

No worries on the tang. The clean up crew will do its job. Now for your PH issue. Do you have glass covers on your tank?

 

yes I do but I have both of the covers open. i use just a portion of the cover to have something for my lights to sit on.