120g and 125g integrated in to one system with a 30g sump that holds an ER 8-2 and ER 8-3+, return pump is a dart 2400gph that feeds a 3/4 chiller. I dose Randy's 2 part and 15% weekly WC with IO. I have 30+ small fish between the two tanks and 250lbs of LR and both are BB. I feed my fish Mysis twice a day and cyclopeze 3 times a week.
My lighting on the tank I posted pics of (all of the pics are only one tank) is my favorite combination and I will be doing the same on the other soon. It is 4 250w MH 10k 12k 10k 12k Reefflux about 7" above the water on the 5' tank. I cant say enough good things about these bulbs! The other system has 5 bulbs over it, 20k 10k 20k 10k 20k, 20k's are 250w XM and the 10k are 175w XM. I like this look but it does not compare to the other tank.