its been only like 2-3 weeks since i last flushed. then again ive been using alot of nutes since. i use 10 drops (10-20 drops/litre recommended dose) of 8-7-6 miracle grow, 10 drops (7 drops/litre recommended dose) of 10-15-10 liquid plant food, and 1 gram (1 gram/litre recommended dose) of...