Phosphorus problem!

CALIGIRL

Well-Known Member
I had some brownish grayish stuff on my plants and they turned kind of brittle, i looked it up and its a Phosphorus problem.

I have clones that have rooted very well. They are in rapid rooters now in 6" rockwool cubes. I use RO water so i add about 200ppm of CAL MAG and another 200 ppm of flora nova grow, So total about 400ppm.

Is there anything I can add for Phosphorus deficiency or is my ppm to low?

Help please =)
 
Top