Hey everybody, I'm having trouble with phantom chemical levels. While normally the solution would be my bacteria eating everything up, my tank has been cycled for god knows how long. I've noticed one of my six mollies gradually becoming skinnier, and he seems to have some permanent damage on his mouth from fungas that has since cleared up. I checked it this morning, and only some of the six mollies have popeye. I'm currently treating with Pimafix and Melafix as well as Kordon ammonia detoxifier, as it's worked miracles for me before.
I tested ammonia this morning and it read 0, then went to nitrites. I'm not sure exactly what it read, but it definitely was not the blueish color it should be if it was zero, moreso a purple (using the Acqueon freshwater testing kit). So I rushed here to ask for some help and I'm going to do a water change.
This is beyond my comprehension, because I just did a large water change two days ago.
I have had some natural algae grow on one spot of my tank, on a large rock accent near the front of the glass.
The glass itself has clouded sections on the inside (been there for a long time), pretty much all over the tank. I'm just assuming it's my bacteria colony.
While I have taken over care of two large fishtanks at my school, I don't recall either of the foreign tanks having any kind of disease, nor any of my equipment causing cross contamination.
I have added a second filter cartridge to my filter, but its been there for a while and I didn't remove the old one. The old one is falling apart and I wanted to transfer some bacteria to this new one.
In addition to the tetramin flakes that they have always been fed, I just started occasionally feeding my mollies blocks of frozen brine shrimp.
If anyone knows what could be causing these sudden explosions of levels or the fungus that keeps coming back and disappearing, please help me. I'm going to go do a large water change and I will be back.
-Thank you very, very much
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