Hi All! I just joined this forum, I was active a long time ago on the planted tank forum, and thought I would join this one as well. Im not new to high tech tanks and EI ferts but my new tank has got me pulling my hair out. I am swapping over to RO water and I have a target KH of 0 and a target GH of about 4-5. In practice my KH tends to climb a little due to some of my Seriyu stone, but I try and keep it down. I am noticing general extremely poor plant growth on some of my plants and some pretty bad algae issues that I cant seem to get taken care of. I have ammania senegalensis and Rotala macrandra in particular. I have not had issues in the past but my Macrandra is very much not turning pink and the growth randomly stunts, the ammania is generally atrocious looking and grows slowly with poor coloration and is infested with algae.
Right now my params are hanging around a KH of 6, GH of 8 and a off-gassed ph of around 7.5 (pre RO transition). I am convinced that it is a nutrient issue and I am thinking that the high PH is causing some of my micros to not be as effective. I have some Microplex and am thinking about swapping over to it from CSM+B, but I dont know if its ideal. I know that some members do custom micro mixes, which I am very interested in. The rest of my macros are in healthy ranges, K of 25ppm, No3 of 10-15 PPM, and my phosphate is always leaning on the low end with double dosing but after increasing it I dont see any signs of phosphate deficiency and my GSA is gone. The only algae I see is hair algae. I checked my co2 levels with the Hanna instruments chemical test kit and it is right in the 30-40 ppm range all through my photoperiod. At this point im thinking it could be an issue with micros. Is toxicity a possibility?
Right now my params are hanging around a KH of 6, GH of 8 and a off-gassed ph of around 7.5 (pre RO transition). I am convinced that it is a nutrient issue and I am thinking that the high PH is causing some of my micros to not be as effective. I have some Microplex and am thinking about swapping over to it from CSM+B, but I dont know if its ideal. I know that some members do custom micro mixes, which I am very interested in. The rest of my macros are in healthy ranges, K of 25ppm, No3 of 10-15 PPM, and my phosphate is always leaning on the low end with double dosing but after increasing it I dont see any signs of phosphate deficiency and my GSA is gone. The only algae I see is hair algae. I checked my co2 levels with the Hanna instruments chemical test kit and it is right in the 30-40 ppm range all through my photoperiod. At this point im thinking it could be an issue with micros. Is toxicity a possibility?