I just finished with my DYI 15gal fuge, and have been researching lighting for it. I'm sure I have read here in RC somewhere about this, but your comments would be appreciated anyway. I'm planning on using cheato-(if I can find it here), but am not sure if I should light it 24/7, or reverse schedule? Also, are there any ill effects to mineral levels, or water chemistry if I do light it 24/7? thanks again for any input.