Ok, tell me this is normal. This morning I have gradually made it lighter in the room, first a lamp then an overhead light, then another, etc. until I turned one of the lights on the tank. The group of discus swam from one end of the tank to the other and back. Once they got back to the other end (the lighted end), 1 layed against the glass, another flat on the bottom. The other 5 swam around a bit more and were hanging around together, fins open, looking great.
I fed the tank a small portion of food. The fish that have been in the tank all came over to eat. The discus did not. Then after just a few minutes all of the tetra are at the surface with their noses up and 2 of the discus are doing the same. The cories are fine as well as the Rams. I am paranoid and get a aerator and add a small stone to the tank just in case. I think they were getting tiny bits of food off of the surface, but I have always heard that discus are bottom feeders so I am a little worried. A total of 5 of the discus have gone to the top and hung out a while with their noses up, but are now back down swimming around with their fins spread wide open. The 2 are still over at one end of the tank on the bottom kind of leaning on the glass. All of the fish in the tank appear to be breathing harder than usual, but I could just be imagining it! Everyone has great color- the rummies noses are red, the rams have all of their coloring, the new discus all have their colors- the 2 have the same color as the others except still have stress bars. They have not darkened at all.