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Originally Posted by T3Knical5urg3 Ok now my otos is on the bottom of the tank with his belly up and not sucked to anything. Something has to be wrong. I know the nitrite tests are ok because I have another tank cycling that read nitrite. The ammonia is defiantly 0 too. I also just test the water after shaking both nitrate bottles and I still got zero which doesn't make sense. The otto has no physical damage or anything funny. His fins aren't even clamped. He just really having trouble breathing and at the bottom. Please help |
You're right. The 0 nitrate reading does not make sense. Did you give the Nitrate Bottle #2 a really, really good shaking, like for two minutes of vigorous shaking plus knocking it bottom up on a counter-top several times? If not, try that. If you still get 0, something's probably wrong with your test formula.
I found out the hard way about Bottle #2 and lost two corys probably because of high nitrates unknown to me at the time. Like otos, they're very sensitive to water quality. I simply followed the API instructions to shake Bottle #2 for 30 seconds, but that wasn't good enough. It's my only disappointment with the API master test kit, but a huge one. When it's not working, it will read 0 nitrates, when you know good and well there should be nitrates.
After vigorously shaking Bottle #2 and still having it come up with 0, I figured that the previous tests had not mixed the formula correctly and that the solution had become diluted. I bought a replacement nitrate test, and sure enough, the nitrates were very high.
How's the little oto doing now? I'm glad to hear he's doing better. Probably a water change tonight helped him out a lot by reducing nitrates that you didn't even know you had, in spite of your careful efforts to monitor them.
The brown algae (diatoms) are almost certainly not the cause of the problem.