I'm two weeks into flower, and change and clean the reservoir every seven days. I changed reservoir of 7 gallons, and added 2 tablespoons of Floranova Bloom, 1 tablespoon of koolbloom, and 1 tablespoon of Calimagic. PPM was 130 before nutrients, and now reads 1180. Ph is right at 6.02, after about 5 tablespoons of PH up. It uses between 1/2 and 1 gallon of water a day. Closer to 1 gallon as the plants are getting much bigger. I have six plants in a megagarden. One is a Royal Bluematic and is much farther along than the rest. It was a free seed, otherwise I wouldn't use the auto flower strains. Other plants are, Trainwreck, Mazar, Northern Lights, Sour Diesel, and Pineapple Chunk. Seeds came from Single seed centre. That's the dope on this grow. Anyway, hope it's not too late to begin with the Calimagic, and thanks for the info.