Tiny Aquarium Builder

Tiny Aquarium Builder is a relaxing aquarium-building puzzle game where you design balanced fish tanks by placing fish, plants, rocks, filters, and decorations into a grid-based aquarium.
Tap an item from the tray, then tap an empty tank slot to place it. You can also tap a placed item to remove it and return it to your tray. Each item affects the aquarium in a different way: plants improve oxygen, filters clean the water, decorations increase comfort, and fish need space to stay happy.
The objective is to reach each level's harmony target while placing the required number of fish. Harmony is scored from oxygen, water quality, comfort, fish spacing, plant support, filter support, and smart decoration placement. Crowded fish, weak filtering, or poor oxygen can lower your result.
The game includes 10 aquarium challenge levels. Each level gives you a different tank size, item inventory, fish requirement, and harmony target. Complete a tank to unlock the next level and earn up to three stars based on your final harmony score.
Features:
• Place fish, plants, rocks, filters, shells, coral, moss, and decorations
• Solve grid-based aquarium balance puzzles
• Watch oxygen, water quality, comfort, fish count, and harmony meters
• Earn 1, 2, or 3 stars from your final tank score
• Unlock 10 handcrafted aquarium levels
• Retry levels to improve your harmony score
• Play offline with no account signup required
• Use sound and vibration settings from the in-app settings screen
Plan your layout, care for each fish, and build a peaceful aquarium one level at a time.