Hi virgin and mello,

If you ask a specific question i will do my best to answer it for you.I will say this though the biggest lesson i have learnt so far is try and keep your water temp down my res is kept between 20-22 cf now as i got root rot through high temps at first.To keep the temp down am using 500 ml bottles filled 3 1/4 and freeze and on the bigger nft trays i use 2 ltr bottles.:thumbsup: