Saltwater reef aquariums, made simple
Making
Making
Reefing Easy
Free tools, honest advice, and a community for saltwater reef hobbyists — from your first tank to your thirtieth frag.
The Toolbox
Eight tools that make reefing easier
Free. No sign-up. Built by hobbyists who got tired of doing the math on a napkin.
New to reefing? Start with Reef SchoolReef Calculator
Daily dosing math without the spreadsheet.
CalculatePAR Estimator
What your corals actually see — without buying a meter.
EstimateStocking Planner
Stop the third-tang regret before it happens.
PlanDino ID
Snap a photo. Find out what's growing in your tank.
IdentifyPest ID
Aiptasia, planaria, bristleworms — name it and beat it.
IdentifyICP Analyzer
Paste your ICP. Get plain-English next steps.
Analyze NewApex Programmer
Apex code, simulated before it touches your tank.
Program NewTank Planner
Plan the build before you buy a thing.
Plan
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