Alright hungry lol this scrog is doing my head in .The flowers have all formed and since i added the 4 t12 tubes they have really came alive and are now all set in there place so now im just leaving them to grow .out of the 9 plants i think the yeild is looking a lot healthier then it would be if i hadnt scroged them so i must have done something rightlol. the t12 add another 7000 lumens per tube i know lumens cant be added so i dont know if they are worth the extra power or if they are ent helping that much need one of the light experts to advice me on this so any of you lookin in add you 10c worth please>The Postman.