alright here goes... the soil doesnt have that much clay in it, id like to say 10-30% but im no scietnist so thats a guess. the roof is about 1 foot above the tallest one, and ive never seen moisture on the roof, always dry even when its been raining its been dang dry under their. ive been slowing down if anything on my waterings, especailly in the last few weeks, ive gone maybe 1ce a week, and giving them only about 1 L each. im using general hydroponic nutrients 3 part mix( flora grow, flora micro, and flora bloom). ive completley stoped adding the grow and only been putting in the micro, and the bloom, as well as 1tbs of phosphorus bat guano into 1gal water. ive been using tap water this whole time though maybe thats doing somehing? ive never checked ppm but my ph is always pretty descent.