So far I love the Waterbox 100.3. Here are my recent equipment additions: 1) Added an 11g ATO from Advanced Acrylics since the built in ATO chamber was on the smaller side. 2) Converted ATO chamber into a refugium with submersible Tunze light. I used black acrylic sheets to shield the light and plastic coated waterproof magnets to hold them in place inside the refugium area. 3) Added doser above the refugium area (Coral Box) on shelf and 2 Trigger dosing chambers.