Well. the Aq is 200liters, the filter is 4 chamber 40 liters, flow is 500 liters per hour, air suply 6 watts on full.
I've treated the water with sera aquatan, and when i suspected amonium(ph is 8) or nitrit/nitrate poisoning, started adding sera nitrivec(says on the bootle instant destroyment of amonia/nitrite + beneficial bacteria) double dose, there is no fungi or other parasites(at least to the naked eye), some guys sayed that it was from stress- little girl hit the Aq(full force) and they cornered them selfs for a day, after that I was changeing something and the neon exploded preety loud, after that, this problems started. The other fish 3 red tourquise, 2 cribensis, 4 corys, 1 toracatum, are acting normaly.
The 2 biggest discusses one 15cm(avatar), other 10cm(red tourquise), are acting this way.
When I suspected poisoning strated doing reaserch, and every where sayed that all the fish should be affected not only the 2 discus.
Since yesterday they calmed down, but when I aproach the AQ he panics, but doesn't go hiding, He jumps directly at me, He looks me in the eyes and jumps preety hard, his head is missing skin. It is like he is trying to attack me or anyone that aproaches the AQ.
I do 10% water changes per day, dont feed them, and all I can say is that he is for a mental facility. When he starts jumping it affects the other discus and as I sayed the other jumps to, and the other 3 go into deep hiding, they dont eat or nothing, I've added humin(black water extract) sera super peat to lower the ph and hardness.
Today I'm puting the lights back on, and to tell you the truth don't care anymore if he hits himself to death. 4 days now I can't get any sleep, I've been waching him like a baby, avery time he hits I get up from bed to check up on him, and no more.
If anyone expierenced this kind of bahavior please reply.