I have a 75 gallon fish-only tank. I have 4 Blue-Green Reef Chromis, 2 Percula Clows, 1 Yellow Tang, 1 Gramma Basslet, 1 Coral Beauty Dwarf Angel, and 1 White Spotted Puffer.
My question has to do with the Puffer. Last night while watching everyone frolick in the tank, I noticed that the Puffer had seemingly "attached" himself to a large piece of fake coral. The coral is branched like a tree and stands about 24 inches tall. The puffer had positioned himself perpindicularly to the bottom of the tank. It was one of the strangest sights I'd ever seen (not that I've seen all that many strange sights). He didn't look distressed. I watched him and he just seemed to be content to look around. About five minutes or so passed before he "dismounted" and started swimming again. Now is this normal behavior or is it some kind of distress signal? The water tests out ok. The NO2
is 0, the NH4
is 0, the NO3
is 0 and the ph
is a little low, about 7.0. Thanks