well the last 2 clones i had have now gone the same way. thought they looked alright but checked today and roots had gone brown under the blocks. it's strange though because on the first lot that did this i pulled all the brown roots off and now there are fresh white roots appearing! so they are still trying to grow, so im assuming that the plants themselves must be alright. i was beginning to think that the mother had picked up some sort of disease ( or has she? if you know of any let me know ). i'l give them another week to grow more roots and try again. ( i will not be beaten!!!!!) posted some more pics, same quality im affraid. it's a pretty basic set up, water get's pumped from the tank up to the growing level which is on a slope and then falls back into the tank at the other end. the spreader mat simply gives the roots something to grow into.and keeps them moist when the pump is not on.