I am beginning a 75 gal planted tank and I feel the single LED light strip I have is not going to be adequate for the job. I know discus are supposed to prefer dimmer lights but is there something that would be nice to grow higher light plants and or have the option to turn one or other light off if it proves to be too much (ie: against algae etc). What is a good system? I may or may not get involved with Co2, not sure and may just go with a simple low tech tank pretty much but want really well grown plants. Advise please. Thanks.