This app was mentioned in 16 comments, with an average of 5.19 upvotes
Someone once put up a link to Aquarium note. it's an awesome app that you take a pic of the water and the paper and you can measure the color to take the guesswork out of it
Apparently the bottles are hit or miss and you need to use double or triple the amount reccomend. If it was a perfect world I would have only got like a damsel and introduced it with a bottle and had a few spares and hung onto them just in case things got out of hand. I definitely wouldn't have gotten nearly as many fish if my buddy didn't have room for them. I'm still kinda skeptical if it works in the long run. If everything except nitrates are 0 next week I will call it cycled. I have been tracking it every few hours and logging it in aquarium note. I will probably make another post next week or an edit to this one with a log of all my parameters throughout the venture for everyone to pick apart.
The Android app Aquarium Note has that feature! Take a picture of the test tube, drag an arrow on the image to the water, and then two arrows to the colors you think are closest and it will tell you which one matches.
https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote
https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote
Keep daily track of all your levels, dosing regiment, and when and what livestock you add.
It has built in color matching for tests, dosing calculators, and water/sand displacement levels.
Best part? 100% free!
You'll never need another app for Reef keeping! :)
Do not put the tested sample back into the tank, that would be highly poisonous!
There are a couple different apps, excel sheets, and such that folks use to keep track. I saw this app the other day and might give it a try.
Aquarium Note: https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote
Currently I use the app AqDiary to track my cycling tank.
https://play.google.com/store/apps/details?id=biz.mihatsch.aqdiary
This app, Aquarium Note (https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote), for Android has a tool to help determine the color of a sample compared to a scale. It's not perfect, and it can take a few tries to get a good result, but I've used it a couple of times so far and it helps, especially for the nitrate.
It's the Aquarium Note app! Really great for tracking readings. Especially during cycling. The UI takes a bit of getting used to. But I find it to be really helpful.
https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote
It doesn't have all the features you're looking for, but you should check out the Android app Aquarium Note.
I used to go to 3 different club meetings a month. Buying selling and trading various fish, invertebrate species, aquatic plants, and equipment. This app helped me track what I had, what I spent, what was in each tank, and maintenance records. It's worth checking out.
I don't think this is a use case that dictates a necessity for self hosting. If it's just you, an app on your phone that saves it's data locally with many options to back up should work just fine.
My low tech no-test kit version of a nitrate test: the duckweed index. Shoutouts to the UKAPS forum for teaching me.
Basically, learn the sign of a nitrate deficiency (yellowed older leaves) and then throw in a handful of some kind of green floating plant. Duckweed is the classic, but it also works well with salvinia or Amazon frogbit.
Since these floating plants get first dibs on light, and access to basically unlimited CO2, any issues you see in the plant growth are likely to be nutrient related. They grow so fast that they're going to change quite rapidly as nutrients are depleted. When your duckweed/salvinia/frogbit's old leaves are yellow, add nitrates.
Or get an app like Aquarium Note on Android and use their Colour Match tool, take a photo of your test tube next to the reference guide, and make your phone figure out your nitrate reading.
I use Aquarium Note on Android. It's great for note-taking, weekly water change/dosing reminders, and it has a cool tool that lets you compare the colour of your test tubes to the reference chart!
Oh, that's fair. Yeah, the API test kit colours constantly make me second-guess my test results. There are some apps available that can "read" a picture of the test results for you - I use Aquarium Note for Android and it has that feature.
Fine filter floss helps in two ways: one, the floss traps debris and other particles (physical filtration) and two, it provides surface area that bacteria can colonize (biological filtration). Filters aren't built that way because they want you to keep buying filter cartridges so that the companies can continue to make money from you.
I'm on Android and I'm currently using Aquarium Note, it covers pretty much all my needs. Even a notebook would do, you just want to keep track of your pH, ammonia/nitrite/nitrate, and optionally also KH/GH readings over time.
There’s an Android app that helps with this. Check the tools section. Wish they made an apple app…
https://play.google.com/store/apps/details?id=com.dyhwang.aquariumnote&hl=en_US&gl=US