it doesn't matter size container you use. it's whatever you find most convenient.Is making the pps-pro solution in a 500ml bottle better than making it in a liter bottle? I just made a liter size bottle and my tanks just started to break out with silk algae and brown hair algae. I am going to make a 500ml bottle again. I switched cause I am to lazy to make the solution every month. What are your opinions?
check the label, otherwise it's not really needed. at least i've never needed it and my plants are doing well without it.hydroponics (here in canada) offers a 6-pack of dry ferts, one of these is CaNO3 (calcium nitrate) which I dont see being used in the PPS-Pro method, is this a misread on my part or is it not needed?