What size airpumps you using for they hydro5's? Looks impressive man! Very kewl indeeders! I'm confused on the crushed coral though, tis it an african tank?
Ma-600 air pumps by millionair. those are all I use. Our tap water here blows so I built a monster RO/DI unit with 6 stage prefilter that puts out 80 gallons per hour... The old one did 150gallons a DAY ..lol Anyway the RO/DI system brings the ph of the water down and the crushed coral returns it to 7.6. I've also noticed that the water chemistry is a lot better and the tanks are way more stable now.
Now I have the 200 and 240 to set up...BUT I have to build the racks for the 4 100's and set them up so I can move 3 tanks so I can tile the floor so I can have a place to PUT the stand I have to build for the 240...lol Oh and THEN find a place to put the 4 displaced tanks...