So watered down lemon juice is a nono, but
Ammonium dihydrogenorthophosphate 5 Isnt? Like honestly what in the literal Ef?! Who wants there supplement to break down into ammonia homie?
Im not seeing anywhere written that lemon juice is bad for mykos. Honestly anything in too high a concentration can be bad for the plants. But using lemon juice as pH down… nah… now will it HOLD that pH? Not for long. But its almost as safe a home remedy to pH control as u can get.
I use baking soda for pH up. Now THAT cant be good for extended use. But its still more ‘organic’ then pH up sold by the bottle my good sir.
O yea… phosphoric acid is in pH down. U were correct there. But its not the only ingredient.