personal preference
power consumption

i like 18/6 cause it uses less power and its more natural for the plants
texas grass Reviewed by texas grass on . 18/6 vs 24/0 I was wondering if anyone knew what would happen if Swim switched to 24/0 after having some plants at 18/ for 5 weeks. Would this encourage new growth from younger plants but not affect older 5 week plants negatively. This is purely hypothetical I just wondered> Rating: 5