Ammonia/Nitrite = 0 ppm
NO3 = 20-40 ppm
Temperature: <= 75F (25C) year round
4x HOB filters with gentle surface movements, NO splashing.
The only thing recently that I've changed is up the CO2 a bit, just because I got these nifty drop checkers and wanted to see where my level was at all this time. I thought having 4 HOB filters would be overkill already.
All this time, I had no idea that there is such a thing as an O2 test kit at the hobbyist level. Thanks @Fissure
. Found a Salifert one. Soooo, what level of O2 is recommended?
Fish (Boraras urophthalmoides, Danionella translucinda, Sundadanio axelrodi 'Blue', Corydoras pygmaeus) are not at the surface or bottom. The gills of the B. uropthalmoides are pink, not clear or red. The other fish either moves too fast or too dark for me to see their gills. Shrimps (cherries, taiwans, crs, etc.) are either clinging to floating plants or lazily grabbing near the bottom. I see a lot of cloudy bodied shrimps which concern me A LOT! Basically, maybe my paranoia is making me see everything as symptoms of impending death/stress.
Is 30 ppm the point where that drop checker thing turns that yellowish green color in my first post? I don't trust my eyes or what "yellowish green" or "lime green" means so I ordered the dual checker shown above. My level is not near that reference standard color contained in the inside bulb at all. It still is clearly bluish green. Maybe I should just dial it down since thst level hadn't caused me any problems in the past until I had the itch to experiment.
I was just curious what metrics other hobbyists base on to gauge CO2 level, especially when it came to the tank's fauna's behavior.