Getting my ferts act together--need help
I currently have a spirogyra (I think) problem and need help balancing my fertilization in the future.
~6 dkh (my gh test is worthless but I run about 5 parts r/o to 1 part tap)
130w pc lighting 10hrs/day (I think this might be too much)
daily excel dosing
once weekly capful of Flourish
20% weekly wc
I've been told I need macros. Can anyone recommend specifics + a vendor?
Do I need phosphate if I already have a pretty heavy bioload?
I'm trying to keep things as low-maitenance as possible.
Thanks for your help.