I have a 29 gallon planted tank. You can look at my gallery to see what it looks like. I have more plants then the picture, got 2 bigger ones since the picture. But you get the idea. I have 2 L-144 pleco's and I wanted to know if I can get one or a pair of German Blue Rams. My water parameters are this. Ammonia 0ppm, Nitrite 0ppm, Nitrate 5-10ppm in form of NO3 for the plants. KH 7 and PH 7.2-7.4 with CO2 injection. 80 degrees is the temp. If I can't what would I need to do to change it? Lower the PH is all I can think, Would I go about doing this by adding some RO water? And if I did how much RO would I need in a 29 gallon to drop it? And to where should I drop it. I don't want to hurt the pleco's though.