I have a 13 gallon tank. Parameters amm <.25 (high amm level in tap water...adding second filter tomorrow), nitrite 0, nitrate <10. Inhabitants: 5 neon tetras, 2 black flame tetras, 2 endler livebearers, 5 RCS, 1 mystery snail.
We added the 2 endlers on sat of last week. I have been keeping a...