Your aquarium deserves more than a notebook.
AquaticLog is the all-in-one aquarium management platform trusted by aquarists for over 13 years. Track water parameters, manage livestock, schedule
maintenance, and watch your aquariums thrive — all from your phone.
WATER PARAMETER TRACKING
Log 50+ water parameters including pH, alkalinity, calcium, magnesium, nitrate, phosphate, and dozens of trace elements. Set target ranges, spot trends, and
catch problems before they become disasters. Import professional ICP test results from Oceamo, Fauna Marin, Triton, and ReefLabs.
SMART REMINDERS
Never miss a water change, feeding, or filter replacement again. Set recurring reminders for measurements, dosing, maintenance, and more. Home screen
widgets keep your next tasks front and center.
LIVESTOCK MANAGEMENT
Track every fish, coral, plant, and invertebrate across all your tanks. Record purchase dates, sources, and pricing. Move inhabitants between aquariums and
keep a full history of their lifecycle.
EQUIPMENT & DOSING
Log all your equipment, track dosing schedules, and monitor your RO/DI filter life. Browse and review products from the community database.
CONTROLLER INTEGRATION
Connect your Neptune Apex, Seneye, or AquaWiz controller to automatically pull probe readings into your parameter history.
PHOTO & VIDEO DIARY
Document your aquarium's evolution with photos and diary entries. Bring your tank to life with AI-powered video animation.
COMMUNITY
Explore public aquariums, discover featured tanks, browse the species database, and share your setup with fellow hobbyists.
SYNC EVERYWHERE
Your data stays in sync across all mobile and web platforms. Start a log on your phone, review it on your computer.
FREE TO USE
Get started for free with limited access to parameter tracking, reminders, inhabitants, equipment, dosing, water changes, feeding logs, AI insights, data
export, and more.
PRO — FOR SERIOUS AQUARISTS
Upgrade to Pro to unlock unlimited aquariums, unlimited photos, unlimited parameter logging, full inhabitant history, and ICP test uploads. One-time
purchase options available — no forced subscriptions.
Freshwater, saltwater, or reef — AquaticLog has you covered.
I am new to this hobby transitioning from freshwater to saltwater aquarium. After close to two months of research I have made the decision to setup my tank. I came across a lot of app and saw the reviews of AquaticLog and decided to try them. In a few days after me downloading the app I received a email from the creator Dmitry and just that follow up email has shown how much you care for your customers let alone for all the hobbiest out there who use this app. I am very very new but from what I have read and see I think I am headed in the right direction while using this app I will be able to keep and maintain a good record of all that I will need to know about my aquarium. TEAM of AquaticLog please keep up the AWESOME WORK and look forward to becoming a PRO member soon with you guys. Thank you and Happy Reefing.. 👌👏👌👏
Too expensive
aki-sumi
Update: developer feedback was "dKH recommendation is just a guideline and you can override it to your liking on a per aquarium basis. AquaticLog has been around for many years thanks to the support of paying customers, all of its features are free for 1 aquarium, if a person has more than 1 aquarium, there is a very good likelihood they can afford a subscription." I like how the developer assumes that if you have more than one tank you can afford multiple tank subscriptions... I have 2 3 gallon tanks with a hand full of corals, I have a 1 gallon jar tank additionally, I used my tax return to start these tanks then the rest to pay bills ahead, and furthermore I just recently lost my job after staring the tanks. You shouldn't make assumptions it makes you the 3 letters of the word....Original review: there are good apps for this under 5 bucks, was excited about this app but can only manage 1 tank unless you want to spend 20 bucks. tbh i keep a paper log in a reef journal so i dont need this but wanted water change reminders, 20 bucks is rediculous for this type of app. also your dkh reminders are off it tells you its bad to have dkh of 12 and that it should be 11 thats false 12 is acceptable and even 13 if all other params are good. also a pain to adjust your readings you input if you typo something, think i will stick to paper and pen.
Developer Response
dKH recommendation is just a guideline and you can override it to your liking on a per aquarium basis. AquaticLog has been around for many years thanks to the support of paying customers, all of its features are free for 1 aquarium, if a person has more than 1 aquarium, there is a very good likelihood they can afford a subscription.
Great application, complete, and easy to use
KStroble
This is a great application for documenting all of your activities with your reef. It’s easy to use and intuitive when navigating through the different areas. It graphs my all parameters so that I can see trends and there is room for notes in every entry. I’ve been able to record all of my maintenance efforts and set reminders (great feature). I am able to document what I’m dosing, how much, how often, for both manual and automatic doses. I’ve all my corals and inhabitants, dated when I’ve added them and can store pictures to record their progress. In addition to all of the great features, the app has been very stable, I’ve had zero issues. If you are looking for a simple but yet complete app to manage and record your reef, this is the application for the job.
Developer Response
Really nice of you, thank you so much.
An essential tool for aquarium management
CardPlayerV
I switched from fresh water to marine about 9 months ago, and one of the first things I noticed was that it’s absolutely essential to keep sable parameters. To know what those parameters are you must keep an accurate record of what’s measured and when. In addition it becomes necessary to record what was done, dosed, added and removed from and when. I tried a few products and with each use noticed their shortcomings however from the first time I started using AquaticLog I realized how easy keeping records and noting trends were with it. Additionally, with the new reminders checkbox on the home page it helps any enthusiast to be better and quite intuitively add notes and measurements. I would say Aquaticlog is a MUST-HAVE tool and I highly recommend giving it a try.
Bug fixes and performance improvements
Version 14.4.5
The developer, Lonnex Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
Identifiers
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Lonnex Inc
Size
16.8 MB
Category
Utilities
Compatibility
Requires iOS 18.1 or later.
iPhone Requires iOS 18.1 or later.
iPad Requires iPadOS 18.1 or later.
Mac Requires macOS 15.1 or later and a Mac with Apple M1 chip or later.