So I have 4 acan lords in my tank. They have all been doing wonderfully. One recently though has been annoying me. It will open and be all puffy for like an hour, then shrink back into it's skeleton. The other 3 are always puffy. Some tank stats
20 gallon tank lit with a kessil a150w 15k. Ammo-0, trites-0, trates-<5, phosphate 0.04 (Hanna), calcium-400 (salifert), alk-9 dKh (salifert), mag-1450 (salifert). They are all on the bottom in medium flow from a koralia 425 and mp10 on reef rest at about 50%. The closest coral is a montipora Danae encrusted on a rock and a hammer coral about 4" away. Any insight would be helpful
20 gallon tank lit with a kessil a150w 15k. Ammo-0, trites-0, trates-<5, phosphate 0.04 (Hanna), calcium-400 (salifert), alk-9 dKh (salifert), mag-1450 (salifert). They are all on the bottom in medium flow from a koralia 425 and mp10 on reef rest at about 50%. The closest coral is a montipora Danae encrusted on a rock and a hammer coral about 4" away. Any insight would be helpful