Twelve interactive reef-planning tools
Quizzes, calculators, visualizers, and trackers — built by reefers, run free, no account required. Pick any tool below to start planning, building, or maintaining your saltwater system.
Planning
Reef Tank Match Quiz
Match your space, budget, and reef ambitions to one of 12 saltwater tank archetypes in 90 seconds.
Open tool →Aquarium Size Calculator
Get a recommended tank size, filtration capacity, lighting, and flow rating for your space and stocking goals.
Open tool →Reef Equipment Planner
Tier-aware build sheet that assembles a complete equipment package with Amazon shortlists for each component.
Open tool →Reef Budget Calculator
Estimate startup cost, monthly upkeep, and power consumption for your reef build with budget-friendly alternatives.
Open tool →Equipment
Lighting Coverage Visualizer
Heatmap-visualize PAR coverage for AI Prime, Radion, Hydra, Kessil, and ATI hybrid fixtures.
Open tool →Aquarium Flow Generator
Calculate ideal turnover and recommend wavemaker pumps for any reef tank size and ambition.
Open tool →Corals
Coral Compatibility Visualizer
Drag corals onto a virtual reef and see aggression zones, lighting, flow, and spacing warnings in real time.
Open tool →Aquascape Planner
Sketch your reef rockwork before you order a single rock — drag-and-drop with multiple tank shapes.
Open tool →Livestock
Stocking Compatibility Tool
Build a stocking list — we flag aggression conflicts, undersized tanks, and reef-safety concerns.
Open tool →Reef Livestock Database
Searchable database of reef-safe fish, corals, invertebrates, and cleanup crew with care, aggression, and tank-size data.
Open tool →Maintenance
Water Parameter Tracker
Track salinity, pH, alkalinity, calcium, magnesium, nitrate, phosphate, and temperature — saved locally.
Open tool →Aquarium Maintenance Tracker
Schedule and log every weekly, monthly, and quarterly reef chore with CSV export.
Open tool →Are these reef tools really free?
Yes — every tool is free with no account required. Tools that save data (Water Parameter Tracker, Maintenance Tracker, Aquascape Planner) store locally in your browser, so your data never leaves your device.
Do I need to install anything?
No. All 12 tools run in your browser. They work on desktop and mobile.
How accurate are the calculator outputs?
Outputs are reef-tested guidelines — accurate enough to plan a build but always validate with experienced reefers in your local club or fish store before major purchases or livestock additions.
Can I export my data?
Yes. The Water Parameter Tracker and Maintenance Tracker both export to CSV. The Aquascape Planner saves layouts to localStorage that you can reload on the same device.