Free tools
Free Aquarium Calculators
Instant estimates for your freshwater or saltwater setup — no signup needed, no pressure to buy.
Most popular
Freshwater Stocking Calculator
Estimate how many fish your freshwater tank can safely hold based on tank size, filtration, and species type.
Use calculator Planning tool
Saltwater Tank Startup Cost Estimator
Get a realistic budget estimate for starting a saltwater aquarium in Florida — by tank size and reef-readiness level.
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Mon-Sat 10am-6pm, Sun 12pm-5pm · 2847 Bee Ridge Road, Sarasota, FL 34239