Rotala macrandra problems
I can't work out where I'm going wrong with my R. macrandra. It appears to be growing as fast as ever bit the leafs and stems are smaller than usual. It even still pearls alot. Also the edges of the leafs have curled up. What does surprise me is the colour which is a deep red. It used to be a nice pink/red colour. I'm dosing using the EI method adding potassium nitrate, fleet and potassium sulphate. Then my micros are the UK equivalent of csm+b traces. As the water here is rock hard I cut with RO water 3:1 which gives kh of 4 and gh of 6. Loads of CO2 is going in which gives a pH ranging from 6.2 to 6.4. No algae grows and all my other plants grow mad. Lighting is 3wpg of T8 fluorescent.
The only areas I could see where I might be lacking is with calcium and magnesium. Can't believe it is calcium so have started to add some magnesium sulphate in with my dosing schedule. Adding 2ppm Mg 3x a week. It's been nearly a week now and haven't noticed any real changes.
Is anybody able to shed some light on where I might be going wrong.