Aquarium Log - Tank Manager

Name: Aquarium Log - Tank Manager
Rating: 4.9 (255 reviews)
Author: Ko Hyunshik

Simple Aquarium Journal App

Free · In‑App Purchases · Designed for iPad

255 Ratings
Ages

4+
Years
Category

Productivity
Developer

Ko Hyunshik
Language

EN
+ 9 More
Size

71.1
MB

Aquarium Log is a powerful mobile app designed for aquarists of all levels—whether you’re a hobbyist or a professional. Effortlessly maintain and monitor your tanks with intuitive features that keep everything organized and accessible. Features • Calendar View: Organize all your notes and tasks by date, so you never miss a thing. • Unlimited Aquariums: Manage as many tanks as you want with ease. • Record Measurements & Export as CSV: Log water parameters and easily export them to CSV files for deeper analysis. • Multiple Timers for Precision Tests: Use multiple stopwatches to accurately time your water tests and other tasks. • Feed View of Your Activities: Easily track what you did and when with an organized feed of your activities. • Detailed Graphs: Analyze your tank parameters and trends using responsive, touch-enabled graphs. • Photo Gallery with Custom Tags: Tag photos of your aquatic life and sort them using custom tags for easy browsing. • Tank Albums: Create and manage photo albums for individual tanks. • Cloud Backup & Restore: Securely back up your data to the cloud and restore it whenever needed. Stay on top of your aquarium management with Aquarium Log, making it easier than ever to understand your tank’s history and improve your aquatic environment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

4.9

out of 5

255 Ratings

Tired of 4 different calendars. Decided to try an app!
12/30/2025

RAISCHCAR
ETA: Wrote my review... two seconds later found the "diary" icon! Noooo! Okay. 5 stars, my bad! Its hard to see, but it's there! Original:Just set all my tanks into the app today. (Dec 29, 25) Absolutely lovely settings and options available. Asks for dates and inhabitants, plus styles of equipment. Fresh or salt water. Lots to work with! For reference, I have 12 tanks going and have paper calendars in each room that has tanks, just to take notes on what was done and how. Been running most of them for over a year & have a few that are two years old. (Thankful I labeled my startup dates on the tanks themselves. Super cool to see the exact ages of the tanks on the app!)Wanted to try something new and get rid of all my calendars everywhere. I love everything so far, except one thing:There isn't a "notes" option in the calendar mode. 😭Now, it really wouldn't matter with just a few tanks. Or with someone who isn't as obsessive as I am. I get that. But, for those of us who need the extra note space, adding such an option to the daily calendar side would be amazing. This app nails most all of it (far as I can tell with a freshwater in tank settings, no idea for marine, as I am not there yet. I can bet it's just as thorough there, though.)Thats literally my only complaint thus far. I love to write notes on how or what I did to my tanks *very* specifically. (Needs at least a 250 character limit or so.)I will continue to use this app for a month or two, see if there is something I am missing or need to learn. (Will come back and update if something new pops up.)Overall, great app. Has most everything. Found the creator comment on reddit when I looked up good apps for keeping track. Was not disappointed.
Tired of 4 different calendars. Decided to try an app!
12/30/2025

RAISCHCAR

ETA: Wrote my review... two seconds later found the "diary" icon! Noooo! Okay. 5 stars, my bad! Its hard to see, but it's there! Original:Just set all my tanks into the app today. (Dec 29, 25) Absolutely lovely settings and options available. Asks for dates and inhabitants, plus styles of equipment. Fresh or salt water. Lots to work with! For reference, I have 12 tanks going and have paper calendars in each room that has tanks, just to take notes on what was done and how. Been running most of them for over a year & have a few that are two years old. (Thankful I labeled my startup dates on the tanks themselves. Super cool to see the exact ages of the tanks on the app!)Wanted to try something new and get rid of all my calendars everywhere. I love everything so far, except one thing:There isn't a "notes" option in the calendar mode. 😭Now, it really wouldn't matter with just a few tanks. Or with someone who isn't as obsessive as I am. I get that. But, for those of us who need the extra note space, adding such an option to the daily calendar side would be amazing. This app nails most all of it (far as I can tell with a freshwater in tank settings, no idea for marine, as I am not there yet. I can bet it's just as thorough there, though.)Thats literally my only complaint thus far. I love to write notes on how or what I did to my tanks *very* specifically. (Needs at least a 250 character limit or so.)I will continue to use this app for a month or two, see if there is something I am missing or need to learn. (Will come back and update if something new pops up.)Overall, great app. Has most everything. Found the creator comment on reddit when I looked up good apps for keeping track. Was not disappointed.
A great tank management app!!!
12/05/2025

REDhed KLOWN
This app has everything you’d need to organize and keep track of maintenance on multiple fish tanks! With customizable tasks for each tank, optional notifications, customizable data collection for water parameters, and a perfectly simple calendar to keep track of necessary tank needs! I’m new to owning a tank, and I started off big with a 50 gallon tank! This app made everything much simpler for me to understand, and way less daunting! Along with the other features I mentioned, you can also add and track breeds of fish in each tank! There is also an optional social section of the app where you can post information for your tank or see what other users are doing in their tanks too!I love this app very much! My ONLY gripe with the app is I wish notifications had the badge on the iPhone Home Screen, and that notifications could be labled as “Time Sensitive” so they are displayed over other less important notifications on my phone. (As of December 2025 this is not an option)Keep it up! I love this app very much!!
A great tank management app!!!
12/05/2025

REDhed KLOWN

This app has everything you’d need to organize and keep track of maintenance on multiple fish tanks! With customizable tasks for each tank, optional notifications, customizable data collection for water parameters, and a perfectly simple calendar to keep track of necessary tank needs! I’m new to owning a tank, and I started off big with a 50 gallon tank! This app made everything much simpler for me to understand, and way less daunting! Along with the other features I mentioned, you can also add and track breeds of fish in each tank! There is also an optional social section of the app where you can post information for your tank or see what other users are doing in their tanks too!I love this app very much! My ONLY gripe with the app is I wish notifications had the badge on the iPhone Home Screen, and that notifications could be labled as “Time Sensitive” so they are displayed over other less important notifications on my phone. (As of December 2025 this is not an option)Keep it up! I love this app very much!!
Best Aquarium Sidekick
07/02/2023

Taco58859
This app is hands down the best out there for helping to keep track of the maintenance behind aquariums. It’s easy to use, well developed, and is very customizable. My only complaints are that scheduling future tasks is not the most straightforward and certain parameters like chlorine are not available. However, this app still beats anything I’ve used so far!Edit: The creator of this app seems dedicated to making the best possible aquarium app. Since my original post, they have made tasks very straightforward and allowed even more customization to them. They have also added their own community to post pictures of your tanks. I’m sold

Developer Response
Thank you for your feedback! I'm glad you're enjoying the app. In the recent 0.1.0 update, I've added a feature for users to add and modify parameters like chlorine. I agree with you on the future tasks scheduling, it's not as straightforward as it should be. It's my top priority for the next updates. Thank you again for your valuable input!
Best Aquarium Sidekick
07/02/2023

Taco58859

This app is hands down the best out there for helping to keep track of the maintenance behind aquariums. It’s easy to use, well developed, and is very customizable. My only complaints are that scheduling future tasks is not the most straightforward and certain parameters like chlorine are not available. However, this app still beats anything I’ve used so far!Edit: The creator of this app seems dedicated to making the best possible aquarium app. Since my original post, they have made tasks very straightforward and allowed even more customization to them. They have also added their own community to post pictures of your tanks. I’m sold
Developer Response 05/18/2023
Thank you for your feedback! I'm glad you're enjoying the app. In the recent 0.1.0 update, I've added a feature for users to add and modify parameters like chlorine. I agree with you on the future tasks scheduling, it's not as straightforward as it should be. It's my top priority for the next updates. Thank you again for your valuable input!
Free and amazing!
05/16/2025

Emmalovesu<3
I’ve been trying to find a good aquarium manager app but every time I try one out either they have a limited fish collection and no add your own or you have to purchase a subscription to be able to add fish which is extremely annoying. This app is free and has a community and Q&A as well. It’s amazing! There are so many nice people on there ready to give you friendly tips and compliments on your tank! I would recommend this to anyone who wants an app to help mange their tank as well as a friendly community ready to help!!
Free and amazing!
05/16/2025

Emmalovesu<3

I’ve been trying to find a good aquarium manager app but every time I try one out either they have a limited fish collection and no add your own or you have to purchase a subscription to be able to add fish which is extremely annoying. This app is free and has a community and Q&A as well. It’s amazing! There are so many nice people on there ready to give you friendly tips and compliments on your tank! I would recommend this to anyone who wants an app to help mange their tank as well as a friendly community ready to help!!

v0.3.16 Bug fixes and stability improvements for a smoother experience.

Version 0.3.17

Feb 27

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