My rainbowfish have been in this tank for about 6 months, have doubled in size. They usually swim up towards me hoping to feed. Yesterday they started freaiking out! They are very close to jumping out of the tank any time I come close to the tank. They also all hide at the far side of the tank, when there is any movment in the room. They have never acted like this before. The only thing that has changed in the tank recently is new co2 bottles but I know the co2 is not too high...What could this be? I have not changed the filter recently, last time was 6 weeks ago (rena xp3 with mostly cermaic bio media.) It seems like only the rainbow fish and platies are freaking out, tetras seem fine.
Tank 90gallon, with 15 juvenile (2") assorted rainbowfish, 8 neon tetras(soon to move out of this tank-too small), 3 platies.
Ive had this tank set up and "cycled" for a year now. Water stats: ammonia=0, nitrite=0, nitrate=5, ph=7.1, KH=110, GH= 330, temp=25.3C. Tank is moderatley planted with about 1.9wpg and co2 added via do it yourself yeast and sugar. I use half RO water and half my city water for water changes. My GH is higher than I expected, perhaps I need a large (60%) water change. My city water is kh=110 GH=270.
Thanks for any help you can offer,
Regards
Tank 90gallon, with 15 juvenile (2") assorted rainbowfish, 8 neon tetras(soon to move out of this tank-too small), 3 platies.
Ive had this tank set up and "cycled" for a year now. Water stats: ammonia=0, nitrite=0, nitrate=5, ph=7.1, KH=110, GH= 330, temp=25.3C. Tank is moderatley planted with about 1.9wpg and co2 added via do it yourself yeast and sugar. I use half RO water and half my city water for water changes. My GH is higher than I expected, perhaps I need a large (60%) water change. My city water is kh=110 GH=270.
Thanks for any help you can offer,
Regards