100% Free Tools

Interactive Ocean & Aquarium Tools

Free tools designed for aquarium hobbyists, divers, and ocean enthusiasts. Make better decisions with data-driven insights.

Popular

Fish Compatibility Checker

Find out which fish can live together peacefully in your aquarium. Get detailed compatibility reports and tank mate suggestions.

Instant compatibility checkTank mate suggestionsAggression warnings

10K+

users

200+

species

Popular

Tank Size Calculator

Calculate the minimum tank size needed for your fish collection. Get stocking recommendations and filtration requirements.

Multi-species supportStocking level %Filter recommendations

8K+

users

50K+

calculations

Seafood Sustainability Checker

Make informed seafood choices. Check sustainability ratings, mercury levels, and find eco-friendly alternatives.

Sustainability ratingsMercury levelsBetter alternatives

150+

species

5

sources

Coming Soon

Species Identifier

Upload a photo and identify marine species using AI. Perfect for divers, snorkelers, and curious beachgoers.

AI-poweredInstant resultsDetailed info

95%

accuracy

1000+

species

Notify Me

Dive Site Finder

Discover amazing dive sites around the world. Filter by marine life, difficulty, and best season to visit.

Marine life infoBest seasonsNearby shops

1000+

sites

80+

countries

Why Use Our Tools?

Built by marine enthusiasts, backed by scientific data.

100% Free

No subscriptions, no hidden fees. All tools are completely free to use.

Expert-Backed

Developed with input from marine biologists and experienced aquarists.

Instant Results

Get answers in seconds. No waiting, no complicated processes.

Trusted Data

Data sourced from FishBase, IUCN, and other reputable scientific sources.