A few years ago I bought a 40 watt kit from AHSupply for a 20 high. I see they no longer carry the 40 watt bulbs (just 36 and 55). I'm wondering if I can use the existing kit to go down to 36 or up to 55? Anybody know. When I got the kit I think I remember it had instructions to wire it for 55? But I'm not sure I want to go that high with the tank. I like slow growth since I use DIY CO2 and excel, I'm not sure I could keep up with almost 3 watts of AHSupply light.
TIA
TIA
