Easily calculate aquarium water volume, surface area, and substrate needs for various tank shapes. It also recommends appropriate fish stocking levels and pump sizes for optimal water flow and aquarium health.






10+ similar apps compared and reviewed
Whether you want more options like Fish Tank Buddy or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






Easily calculate aquarium water volume, surface area, and substrate needs for various tank shapes. It also recommends appropriate fish stocking levels and pump sizes for optimal water flow and aquarium health.

This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.






Calculate the partial and full volume of horizontal and vertical tanks with various head types. This tool is essential for engineers to determine liquid volumes at any height, simplifying calculations for storage tanks and pressure vessels.


This app offers a comprehensive suite of advanced calculators for winemaking. It assists with unit conversions, adjustments for sugar, acidity, and sulfites, and estimations for alcohol content and blending. Designed for both beginners and professionals, it provides flexible input and output units for all calculations.




Easily calculate the amount of mulch needed for your garden projects. This tool helps determine the total cost and the number of bags required, supporting various measurement units for your convenience.


This app simplifies concrete calculations for various shapes like slabs and columns. It helps reduce waste, improve accuracy, and efficiently determine the number of pre-mix bags needed for your project, supporting multiple units of measurement.


Easily estimate the amount of paint and man-hours required for any room. Input room dimensions and subtract openings like doors and windows for an accurate calculation. Adjust for multiple coats to finalize your project needs.


This tool simplifies water management by calculating water horsepower, brake horsepower, cost analysis, and motor horsepower. It offers instant, accurate results for field use, helping operators streamline workflows and make informed decisions.

