Tank is 75gal. Lit by 4x30w T8s - currently 1x Grolux, 1xDennerle and 2 Arcadia reflectors. I've also recently put in a moonlight LED which is great for watching my Brochis, upside down catfish and Ancistrus come out to feed. Filtration is by a Rena external filter, large Fluval internal and a...