Many of you may have read my other thread, but wanted to get some advice. I have been cycling for 30 days or so, finally bought 2 damsels with yellow tails on Friday. They hide a lot. Looked this morning and one of them is really white, other seems fine. My salinity is good, Ph is 8 to 8.2, ammonia is 0 to .25, nitrite is 0, and nitrate is 40 to 80ppm. I know that seems high, so should I do a water change or what?