ok the water is from a watermill express. the ppm is about 0.3 on my ppm meter (x 10 meter) so i guess 30ppm. gh maxi bloom powder at lowest recomended strength of 1100 (1 tsp per gallon). 3 " cubes on to 3 ft slabs. those are about 3 weeks old and just sitting dormant. the deep water is about 3 months old just about2 feet high. dark green with lime green shoots. with nutes my ph is right about at5.5- 6.0