freezing csm+b mix - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 06-16-2019, 08:00 PM Thread Starter
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freezing csm+b mix

surprisingly google didn't turn up any threads about this. I'd like to make a few small batches of micros and freeze what I'm not using till I need it.

Common sense says this should be OK, but my common sense is notoriously unreliable, so I turn to you.

There was only one catch and that was Catch-22.
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post #2 of 4 (permalink) Old 06-17-2019, 12:22 PM
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Freezing it dry? It's going to ultimately get all clumpy and develop issues with moisture. Can still use it but it likely won't look like it did when you first put it in the freezer.

Freezing it in a bit of RO/DI water? Probably fine.

Seems like a lot of effort when you could just store it in a cabinet.

I live in the same humid region you do (maybe more humid, ugh, please rescue me) and have never had an issue storing aquarium fertilizer for years on end. Just keeping it in a cool-ish, dark place works well. Maybe some occasional clumping but it's never been a problem.


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post #3 of 4 (permalink) Old 06-17-2019, 12:56 PM Thread Starter
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Quote:
Originally Posted by somewhatshocked View Post
Freezing it dry? It's going to ultimately get all clumpy and develop issues with moisture. Can still use it but it likely won't look like it did when you first put it in the freezer.

Freezing it in a bit of RO/DI water? Probably fine.

Seems like a lot of effort when you could just store it in a cabinet.

I live in the same humid region you do (maybe more humid, ugh, please rescue me) and have never had an issue storing aquarium fertilizer for years on end. Just keeping it in a cool-ish, dark place works well. Maybe some occasional clumping but it's never been a problem.
I store my macro and micro dry mixes in sealed zip lock bags inside a larger, sealed zip lock bag.

My issue was with the csm+b mix developing mold once mixed up in ro/di water. I added Excel to the mix and it delayed the development of the mold, but it still grew. My solution was to mix up smaller batches of the csm+b, and am now doing so in 100 ml quantities.

That should last me ~4.5 months right now, ~2 months once I add my planned stream tank. But I was wondering if I couldn't just mix up a few batches and store them in the freezer so I'm not having to mix up fresh batches every 2 months.

There was only one catch and that was Catch-22.
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post #4 of 4 (permalink) Old 06-18-2019, 12:43 AM
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It'd probably be fine. Even if (and I don't think it's possible in this case) the quality of the ferts degraded a bit, I don't think it'd be much of a big deal in our hobby.

Maybe you could freeze your ferts in batches by making fert ice cubes? That may be even easier. Just pull them from the freezer as you need them.


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