Build Your Dream Aquarium
Care for 50+ marine species in realistic underwater habitats
Download Oceanary4.7
User Rating
500K+
Downloads
50+
Species
Care for 50+ marine species in realistic underwater habitats
Download OceanaryChoose your welcome bonus and start building your sanctuary today
All bonuses subject to in-app terms. Credit purchases optional. Species unlock requirements vary by rarity tier. Promotional codes valid for new users only.
Oceanary operates on a sophisticated ecosystem simulation engine that models real marine biology. Each of the 50+ species has unique behavioral patterns, dietary requirements, and habitat preferences extracted from actual oceanographic data. The water chemistry system tracks pH levels, salinity, temperature, and nitrogen cycles in real-time.
Tank customization uses a modular grid system where you place substrate layers, rock formations, coral structures, and vegetation. The lighting engine simulates day-night cycles with adjustable spectrum control affecting coral photosynthesis rates and fish activity patterns. Species compatibility is calculated through territorial aggression metrics and environmental tolerance ranges.
Feeding mechanics require matching food types to species dietary profiles. Herbivores need algae wafers and plant matter, carnivores demand protein-rich feeds, while omnivores accept varied nutrition. Overfeeding triggers water quality degradation, forcing partial water changes and filtration system upgrades to restore balance.
Access clownfish, tangs, angelfish, wrasses, gobies, damselfish, and more. Each species features accurate coloration, size progression through growth stages, and species-specific swimming animations. Legendary variants include albino, melanistic, and hybrid colorations with reduced spawn rates.
Build tanks from 20 to 500 gallon capacities using modular placement grids. Layer Caribbean sand, crushed coral, or black substrate. Position live rock structures, place branching and plating corals, add macroalgae clusters. Adjust LED spectrum sliders for dawn, daylight, dusk, and moonlight phases.
Monitor ammonia, nitrite, and nitrate levels through the water testing interface. Install protein skimmers, canister filters, and UV sterilizers to control parameters. Perform water changes when readings exceed safe thresholds. Balance bio-load by managing fish population density per gallon.
Pair compatible species in dedicated breeding tanks with optimal conditions. Witness courtship behaviors, egg laying, and larval development cycles. Raise fry through multiple growth stages by providing species-appropriate nutrition. Unlock rare genetic traits through selective breeding programs.
Feed fish twice daily with matched nutrition profiles. Clean glass surfaces to remove algae buildup. Replace filter media when flow rate decreases. Test water parameters every 48 hours. Complete maintenance tasks to earn experience points and unlock advanced equipment tiers.
Earn badges for species collection milestones, breeding successes, and tank design competitions. Complete challenge scenarios like reef restoration, species rescue operations, and biotope recreation. Unlock exclusive decorations, rare species permits, and premium equipment through achievement progression.
AquaSim Studios specializes in realistic aquarium simulation software with marine biology consultation. Oceanary version 2.4.1 represents three years of development incorporating feedback from professional aquarists and hobbyist communities.
Platform: Android 6.0 and higher | Released: April 2026 | Last Updated: 23.04.2026
Free download on Android 6.0+. No subscription required. Start building in under 3 minutes.
Download for Android187 MB download | Everyone rating | Contains optional in-app purchases