Oh yeah, this filter has been running for months. I put the new bigger filter to seed on the 46g tank for a week, now both are running on the 10g for a little over a week. But it is sooo clear.... I hate to take the little original filter away.
So anyway, I did a 50% water change as stated above earlier last night, after that water change my cherry barbs are swimming in twisting circles. 2 died, 2 are missing - like they evaporated or something and 1 is still alive.
I did another 50% water change this evening and found one cherry barb alive 1 cherry shrimp alive and very red (only had them for 2 days now and they were clear when I got them). So I do not know WHAT is going on with this tank.
The sponge filter I substitued with the floating filter was not seeded at all. I thought it would be okay since all the rock and gravel and plants. I guess I was wrong.. Or perhaps the 2 days ago adding the cherry shrimp had something. or because the store was out of start right and I got something else... Tetra Aqua's Aquasafe. recommended by the fish clerk as what she uses and that it has aloe in it and is good for the fish.. I wonder if using too much is harmful.. I know that using too much start right is not harmful since I have been doing it for years.
how could I be having a nitrite problem and all my baby brig snails and a baby cherry shrimp still be alive? Are these 50% water changes too stressful the the remaining cherry barb and male betta? Should I pick up some bio-spira again or just let it run and change the water every 3 days for a week? It only takes about 7mins but still a pain to do daily. Oh, and my plants are suddenly looking not so happy.... You know... I did add ferts.. is it possible that a touch too much flourish plant food would do this????
The new things that happened. 1 week ago added new non-seeded sponge filter inplace of old floating corner filter. *still have UGF
3 days ago added new plants, water lily and java fern
2 days ago 50 % water change with old conditioner, added 6 baby cherry shrimp and riccia.
12 hours later added flourish plant ferts.
1 day ago was told nitrites high, did 50% water change with new conditioner, hours later cherry barbs started swirling. 2 died, 3 disappeared, 1 lives. baby brigs and ramshorn snails seem fine, betta seems fine, the 1 shrimp I saw seemed fine.