Hi all, first let me introduce myself briefly. I am Sebastiaan from the Netherlands. I have had several fresh water tanks and several reef tanks for the past few years. (Had to change tanks due to changing home..). My current tank is a customized Fluval M90, with a sump. It has been running since October 2014. After some hardware upgrades, I am currently running as follows: Tank: Fluval M90 Sump: Custom sump, 3 chambers Refugium: several macro algae with grow LED, and one Marinpur Block Skimmer: Deltec SC1351 Return: Jecod DSC 4000 Lighting: 2x Radion XR30 G3 Pro's (max 35% on SPS+ program) Flow: 2x Vortech MP10QD Controller: Apex system Media reactor: 2 Aqua Medic reactors size M containing Carbon and Rowaphos Dosing: ATI 6channel doser, dosing Triton Core7 Aquascape is made up out of RealReefRock and live sand added.