confusing post but ill try Muggz !.... c02 ?. what about it ? ...if you mean is it good /worth using ect .I never have but hear people do & swear by it ?
Max ppm ? completely depends on age ,size,health of plant ... you can tell if ppm's are to high if they keep going up or they will drop if to low ...ph usually does the opposite....so if ppm rises & ph drops ...top off with just water to bring the ppm down 50-100.... if ppm drops & ph rises ,add nutes ,up it by 50-100 ..... you want the sweet spot when she empties the res of feed & water at the same rate so the ppm's & ph will stay nice n stable for ya
Never used h202 as I have zym & you dont use them together ... there may be stuff in your AN line that wont mix with it either so be careful(voodoo uice ect) but I could be wrong ... your res temps sound fine though so you shouldn't have any issues on that score
:smokebuds: