Join Date: May 2004
Location: Ontario, Canada
Well, I just tested a few weeks ago 'cause I hadn't tested it in a long time, and was curious. There weren't any problems that caused me to test it.
The tetras were fine up until a couple days ago. I noticed their gill plates looked like they were sticking out a bit when looked at head on. The next day, I thought they looked a little better so I figured I'd wait and see. Then today, their gills looked a bit red, and they were acting somewhat sluggish.
They've been perfectly fine for about a year so I'm thinking this has something to do with the addition of either the danios, the plants, or the master gro, for the plants.
I'm not sure whether plants or their ferts affect nitrate, ammonia, or ph, but my parameters have been pretty constant since the tank was cycled two years ago.