I’ve got a 15ish gallon reef tank that I recently got (2 months ago) I got 2 clown fish around a months ago and kept them in my tank with no coral and seemed to look healthy and happy although one seemed to look like it was loosing its color but sense I’m new I thought it was normal and now my other clown fish is starting to look a little pale and hides from the light unless it’s being fed, the one that’s been pale for a while now seems to be happy and healthy, I added coral to my tank recently also and those also don’t seem like there doing to good. I’ve got a torch that doesn’t open up all the way, a hammer head that doesn’t open up all the way, I also have zoas but they seem to look like there doing really good and opens up all the way. (High range ph 8.0 - ammonia .25ppm - nitrate 0ppm - nitrate 0ppm)