I will check on the airstones and the pump, but imn pretty sure they are working fine. Would you reccommend not filling the resevoir all the way up? Maybe just filling it so it's halfway full to allow more air for the roots to breath?
First time hydro grow and i'm currently having some major issues second week into flowering. First i had a magnessium deficiency and fixed that appropriately with epsom salt. Then in the first week I noticed some drooping and yellowing of bottom leaves on one of my plants, so I thought it was...