HB, you've given me some great help on my soil grow and EC levels in the past. I have a tent separated into 2 4'x4' sections and I use a flip box on a 1000w ballast. I have just finished the second side of the flowering tent which is a 4'x4' flood table that sits on a 115 gallon resevoir. I only got a resy this size because I bought it off of someone for relatively nothing. I have just rooted the first half of the table (White Rhino X Sour Bubble) and had already made the mistake of over-filling the resevoir (75 gallons), so first resevoir change I will come down to at least 30 gallons, or until the water level is high enough for my pump to fill the table- I don't want to waste the nutes. My Hydro shop didn't have the Pro-Tek so I supplemented that with Botanicare's Silica Blast. Im using Dyna Grow and Bloom also Great White and Sweet. Can you recommend any boosters?