Hi Guys
I am going to try out Toms PMDD style EI dosing but i have a few questions i hope you guys can answer. its says that if you have a high P04 in the tap water then add less PO4 well mine is 5 coming out of the tap so this means i need to add les to the PMDD. now if my tap water is at 5 what should i reduce it to ?. i also seem to be having problems with my plants there stems are weak and thin and i get lots of leaves that just fall off and float around the tank. now i think this might be because i have a low GH in my tap water its only 2 coming out of the tap. by adding GH booster do you think this would sort this problem out. i have also noticed that i get holes in my leafs as well.

Thanks guys hope someone can help me out