What you looking to breed? Your Tetra..I am doing WC on my 29s and 20 today. The new 55 is working out and I am working on replacing most of the Java ferns with anubias. Some of the anubias leaves turned yellow. It maybe that they were grown on the surface and have to adjust to being submerged. I Have my water down to around 30ppm but the PH is at 7.3-7.4. Looking at setting up a breeding tank instead of trying to breed in the community tank. I still dream of a 75gallon tank but I know the wife would not be happy with it.