Test your tank.

Sk8r

Staff member
RC Mod
You wouldn't run a sports car never looking at the gauges and readout.

Your tank doesn't come with dials, but it ought to come with 1) thermometer---I use 2, one on the sump, one on the tank. Sometimes they lie. I recommend the digital thermometer, Coralife. 2) a refractometer: accurate, when calibrated---and I've never bought one that wasn't. This measures salt instantly, accurately and down to a .001 not a 'kinda normal.' 3. nitrate/ammonia strips---at least. 4. an alkalinity test. Salifert is the brand I prefer, for speed and accuracy. It also comes with a calibration kit. But in general, just watch your expiration dates on the chemical tests. 5.-6. if you have stony coral, you also need the calcium and magnesium test. It would be a good idea if fish-only people also ran these: the tank would be a lot less mysterious in its reactions if they did.

To FIX the conditions turned up by these tests (and, incidentally, good test results are in my sig line, if you'll take a look) ---1. have salt on hand all the time, plus a water conditioner if you run into an emergency that needs a qt fast and you have no ro/di. Have a ro/di and use only ro/di. 2. have a jar of alkalinity buffer if your alk is low. 3. if you have corals have a jar of calcium and a supply of magnesium---what I use happens to be Tech-M and is liquid.

You do your water changes. Yes. That takes care of all trace elements. Don't monkey with those. But the supplements I name above are necessary.

For stony coral, some use kalk (limewater) in the autotopoff. I do. Some use Two Part. Which you choose is a matter of preference.

Keep records of your tests: just jot them down in a little booklet. If you test every day for two weeks, you will SEE what goes on with tank chemistry far better than any explanation can give it to you, the same as looking at the dials on your dashboard. There's information to be had. And it helps you not be surprised. You can see your car is running low on oil. You can likewise see that your magnesium is falling below 1200 and that's got to be fixed before it gets there.
That will, just fyi, prevent the bottom from dropping out of your alkalinity and calcium levels. Does. It's basic to the way the ocean works.

Re details on how the chemistry works, go to SETTING UP in the stickies above and look for a chapter named Dirt-simple Chemistry. Honestly, it's painless.

A new tank is a delight and an obsession---and if you can direct some of that energy to doing and recording tests, it will have far fewer problems.
 
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I have a composition notebook I keep everything written on. I also have a section where I can make notes....like this fish or that coral added today, dosed X ml of Y additive today, changed dosing rate or changed lighting schedule. I also have a page where I document water changes, GFO and GAC changes. It makes it easier to make decisions and know what's going on.

Great post Sk8tr!
 
I have a composition notebook I keep everything written on. I also have a section where I can make notes....like this fish or that coral added today, dosed X ml of Y additive today, changed dosing rate or changed lighting schedule. I also have a page where I document water changes, GFO and GAC changes. It makes it easier to make decisions and know what's going on.

Great post Sk8tr!

Me too, I have an excel spreadsheet so I can run trends on everything over time. I think it's a must if you want to understand what your tank needs and allow you to learn...
 
You can learn sooooooo much about this hobby just by doing these simple tests.

When I'm starting a new tank and adding fish and corals I tend to run tests daily for two weeks so I can see how this current build is behaving. Every tank is just a tiny bit different from every other tank you build. It IS a living system, and you may plan what you want to keep --- but your tank build may 'love' something else far more. I thought I was going to keep sps, but my tank grew lps like it was going out of style. So...I populated the local area with hammer coral. Have a new tank up and have yet to totally figure it, but I'm sure it will surprise me---possibly by doing lps, but maybe by exceling at something else.
 
You can learn sooooooo much about this hobby just by doing these simple tests.

When I'm starting a new tank and adding fish and corals I tend to run tests daily for two weeks so I can see how this current build is behaving. Every tank is just a tiny bit different from every other tank you build. It IS a living system, and you may plan what you want to keep --- but your tank build may 'love' something else far more. I thought I was going to keep sps, but my tank grew lps like it was going out of style. So...I populated the local area with hammer coral. Have a new tank up and have yet to totally figure it, but I'm sure it will surprise me---possibly by doing lps, but maybe by exceling at something else.
 
To be fair I can't tell you the last time I went for a spirited drive in my m3 and was looking at the dash. I do it all on feel and sound. I can tell how fast I'm going based on gear and rev sound. But that is not the point and I am just being stupid lol
 
Keep records of your tests: just jot them down in a little booklet. If you test every day for two weeks, you will SEE what goes on with tank chemistry far better than any explanation can give it to you, the same as looking at the dials on your dashboard. There's information to be had. And it helps you not be surprised. You can see your car is running low on oil. You can likewise see that your magnesium is falling below 1200 and that's got to be fixed before it gets there.
That will, just fyi, prevent the bottom from dropping out of your alkalinity and calcium levels. Does. It's basic to the way the ocean works.

Re details on how the chemistry works, go to SETTING UP in the stickies above and look for a chapter named Dirt-simple Chemistry. Honestly, it's painless.

A new tank is a delight and an obsession---and if you can direct some of that energy to doing and recording tests, it will have far fewer problems.

I use an iOS app called "Aquarimate" to log parameters. It draws graphs of the parameters you're testing for and takes account of the time between testing automatically. Makes it easy to see flucutaions and long-term trends.

Testing is all I really use it for really, though it has a database of fish and corals, can setup alerts "bug me" for maintenance schedules etc.

The thing I like about this app over others is that you can set both the measurement scale and "desired range" for each parameter. For example I like to use "PPT" for salinity rather than s.g. and dKH rather than meq for Alkalinity.

I don't have any connection to the vendor, just like the app.

-Droog
 
To be fair I can't tell you the last time I went for a spirited drive in my m3 and was looking at the dash. I do it all on feel and sound. I can tell how fast I'm going based on gear and rev sound. But that is not the point and I am just being stupid lol

I like your analogy and it fills a gap in Sk8r's informative thread. Measured parameters, quantitative data, are an important ingredient in making informed decisions about your aquarium but only a part.

There is also the intuition or implicit knowledge we obtain by just looking at the aquarium. The clarity of the water, the extension, color and growth of the coral, the amount of algae growth, detritus accumulation, fish behavior, "pod" numbers, scum on the water surface, odors, color and amount of skimmate, and much more. Developing the ability to see this "data" is critical to maintaining a healthy aquarium. I suspect that all the aquarists that have those stunning reef tanks not only measure water parameters but have also developed a keen "eye" for these qualitative details.

Sk8r mentions recording water parameters. I would add keep a photographic journal as well. There is no longer any excuses for not taking and storing lots of digital images and videos to track change in an aquarium, to monitor growth of fish and coral, to monitor red slime growth and cures, and the state of the sump and refugium. Just like a family photo album, the aquarium photo journal will be greatly valued.

Observe and record!
 

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