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Fish Tank Tool performs a variety of tasks such as calculating the volume and surface area of an aquarium, estimating the number of fish that can be kept in it safely, and quickly converting between different units of temperature, length, and salinity. It is designed for aquarists keeping freshwater and brackish water aquaria.

What's New

Version 1.4.1d0: Release notes were unavailable when this listing was updated.


Mac OS X 10.2 or later

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Fish Tank Tool User Discussion

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Anonymous Member IconReview

Is it possible to convert drops to tsp.? :-) THis would be helpful for tanks as large as 75 gal or more.

Reply1 reply
Version 1.3
Anonymous Member Icon

Sure -- but how many drops are there in a teaspoon (or tablespoon, or whatever...)



Anonymous Member IconReview

This developer deserves kudos for being so diligent in promptly providing what people ask for, and for FREE.


Reply0 replies
Version 1.2
Goles Member IconComment+0

its a good piece of software, I wish It had an option to calculate on centimeters, shouldnt be very hard! : )

Reply1 reply
Version 1.1.1
Neale Monks (Developer)

A request for a metric version was made some other users as well, and you'll be pleased to know there are now US and Metric versions for both Mac and Windows:

Aquarium presets now in common metric sizes.
Surface area in square cm.
Dosage in drops per litre.


Thanks for the feedback!

Anonymous Member IconReview

Worked well and you can not beat the price.

Perhaps a fish company will purchase this database software and add it as a supplied package deal with their fish tanks.

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Version 1.1
gregjsmith Member IconComment+1

Wish it had the ability to calculate for non square aquariums.

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Version 1.1
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> 5 1


Current Version (1.x)


Downloads 5,757
Version Downloads 542
License Free
Date 18 Mar 2011
Platform OS X / PPC 32 / Intel 32
Price Free
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