It's a 60 gallon, I recently upgraded the bulbs in a 4 bulb t5 to 2 atinic one purple and one 10k. Live stock is yellow tang, blue damsel, domino damsel, two clowns, flame angel, lawnmower Benny, manderin dragonette, gbta, lots of corals, cleaner shrimp, turbo snails, blue maxima clam, flame scallop, I have about 80 lbs of live rock, eheim xp3 canister filter, lighting schedule is on about 9-10 hours a day, and blue LEDs at night, no protein skimmer:/