hello everyone im building rdwc system but there are some things im unsure about and im hoping you pro's can help out
how many and what size tubs should i be looking at to go under a 600w light? i grow in grow tents size is 2.4mtr square so there will be 4x 600w in there,
now im unsure whether to go for 4 under each light in something like 25ltr/50ltr 6/13gal tubs or 2 under each light in 80ltr/21gal tubs, i obviously want to fill my space but will 4 under each light be too crowded?
say ive got 6 plants in 6 gal tubs and an extra 6 gal tub used as the reservoir, i understand the res is used to keep the circulation going but if the PH or EC needs adjusting dont i need to empty all the water out of the system into a big tank, adjust ph/ec then refill the system?
If i did this straight into the res tank wouldn't there be a ph/ec spike while the system mixes?
im sure ive got more questions but i'll make this the last for now i dont want to bombard you too much!
do i only need a water heater in the res tank i dont need one in every tub?
Im not a total noob ive been growing for about 5 years mainly in coco but have grown in mud as well, ive been looking at these systems for a little while now and it never ceases to amaze me on the results i see you guys get,,,,,gonna be up n running in 3 weeks