Build the Ultimate Aquarium Omniquarium is a relaxing idle aquarium game where you collect and grow over 100 unique species of fish, sea creatures, and aquatic life across 10 beautifully crafted tanks — from a peaceful Nano Freshwater bowl all the way down to the haunting depths of the Twilight Mesopelagic zone. Hatch. Grow. Sell. Buy egg packs from the shop, watch them sink to the tank floor, and crack open to reveal random species. Feed your fish to grow them from tiny hatchlings to full-grown adults, then sell them for profit or keep your favorites locked away in your collection. Every fish has its own swimming style, speed, and personality.