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Guru's How can i get rid of that white build up of whatever it is on the rockwool cubes that I have in the veg. room??? Is it salt build-up, mold...????? HELP! R.E.C.

Guru's If a garden totals less than 50 cubic feet of growing area, would it be feasable to use co2 in such a small area?? What would be the settings on the gauge, time, quant...etc???? Also what are other methods to use in such a small area ???? Thanks, R.E.C.

Guru's, share some best ways to disperse co2 in a garden??? R.E.C.

What are nominal reading levels for ec/ppm during all the stages? Seedling to flowering? Thanks, R.E.C.

Hi, We just did a complete water change, cleaning with new nute change and the whole nine. Our question is we checked our ec level it read 2.7.How do we lower our starting ec level???? 5 gallon res. Please Advise! R.E.C.

Plants are mostly at 1 month grow, is it cool to prune(cut-off) the old larger leaves? Seems like they are blocking some needed light to the smaller ones under them and in between them. Should we start at the bottom ones first being they are the oldest and largest ones??? Please Advise! R.E.C.