SYSTEM BUILDER · FIVE QUESTIONS

Let’s size your reef.

Answer five questions. The rule engine turns them into a complete, compatible equipment list — every spec checked, every pick explained.

STEP 1 / 5 · TANK

Why we ask · AIO or sump is the biggest fork — it decides whether you run a sump, an external return pump and a full-size skimmer, or nano-class gear in the back chambers. Dimensions size the light and flow.