Wow you like to over feed like nobody I have ever seen. Do me a favor and take a picture of the plants that got a WHOLE tsp of superthrive for a 4 gallon res. That should be 4 DROPS of superthrive. 600-700 ppm is way to much for those plants. I wish you the best of luck but I think that much food is gonna haunt you.
PlantHeadJ Reviewed by PlantHeadJ on . our test run in our DWC are seedlings have just sprouted and we are doing light 18/6 with drip 3 times a day for 15 min with a half strenght nute solution. we are using GH nutes and going by the back of the bottle. so far so good. i will be getting cal mag within the nxt week Rating: 5