i've used bio-bizz and can say it depends on the strain...if they are doing well keep it up and flush em every 30 days...all the strains i've had were rather sensitive...only a Skunk #1 could take bio-bizz nutes every watering...depends on the strain but if they're doing well i'd continue...if you're worried you could do it every other water and see what the difference in growth is...if growth decreases then feed em full strength, if they look like they grow better with nutes every other watering then adjust accordingly...hope it helps