#qt

So I have a 8 gallon QT tank that’s fully cycled and I love using it, but I’m wanting to add a salifin to my tank.Can I still use my QT despite it be extremely small for the tang? I know this may be a stupid question but just wanted to here people thoughts

Hi guys. Hoping someone can help me. Recently my fire fish has been un well, his belly has swollen up, he's not eat very much and his swimming has resoted to staying at the bottom and is breathing heavy. My clowns are perfectly fine and so are my corals. Water parameters are all spot on too. I'm...