Hagen versus homemade formula - Page 4 - The Planted Tank Forum
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post #46 of 54 (permalink) Old 07-29-2004, 11:18 PM
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The Hagen mix I had was so old it wouldn't work, but none of my DIY batches has had a foul odor. Perhaps you had some bacteria contamination. Seems I have heard of this from other posts, so it may be a problem on the manufacturing end. You could use a dilute bleach solution to kill the odor, but I would make sure to rinse it thoroughly so that it doesn't leach chlorine into your fresh batch and zap your yeast.

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post #47 of 54 (permalink) Old 07-29-2004, 11:36 PM
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Thanks Zapus. I'll try that. I'll soak it in a dechlorinator when I'm done. I was afraid to mix more--figured whatever it was would contaminate a new batch. I'm going with homemade from here on out. That stink came from the first batch in a brand new unit.
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post #48 of 54 (permalink) Old 07-30-2004, 04:50 PM
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Quote:
Originally Posted by observant_imp
Thanks Zapus. I'll try that. I'll soak it in a dechlorinator when I'm done. I was afraid to mix more--figured whatever it was would contaminate a new batch. I'm going with homemade from here on out. That stink came from the first batch in a brand new unit.
There is definately going to be a yeast like odor no matter how you dice it. This is just what it smells like after a few weeks of fermenting. I don't find it real fowl though and usually just rinse with super hot water before doing another batch.

Matt

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post #49 of 54 (permalink) Old 07-31-2004, 05:04 AM
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The odor they're describing is something I've found from the occasional Hagen mix, too. There's no words for it, but it's not the usual boozie-smellin' odor that comes off it.
Actually, it's not an odor. It's a stench. A big one. One that can cloud up inside a room and make it smell for over an hour.
I 'got rid of it' by soaking the containers in a bleach solution for the better part of an hour.
Man oh man, the smell still lingers a bit, though.

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post #50 of 54 (permalink) Old 07-31-2004, 04:38 PM
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Just an update. Cleaned, disinfected, dechlorinated, and used the recipe I found here. I can't believe how much faster it's bubbling. Also, must have forgotten to tighten one of them completely--no leaks but a little whiff of it--smelled yeasty rather than foul.

Homemade for me from now on. Thanks to whoever posted the recipe.
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post #51 of 54 (permalink) Old 08-01-2004, 02:34 AM
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which recipe are you referring to? there have been quite a few recipes mentioned...


by the way, in my experience, the jello recipe is too slow...it may be good for a smaller tank say 10 gallon or a 5 gallon that doesn't need as much co2 and can last 3 months...but for my 20 gallon, i had to go back to original 2 cups sugar no jello. it works great.

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post #52 of 54 (permalink) Old 08-01-2004, 02:56 AM
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The one I printed out is:

sugar to first line
water to second line
1/4 tsp yeast
1 tsp baking soda

I don't know yet how long it lasts, but I'm getting bubbles fast enough so that most rows on the ladder have one.
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post #53 of 54 (permalink) Old 08-01-2004, 03:15 AM
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Thats what my recipe is except I only use 1/4 tsp baking soda. I have been going 3 weeks now.
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post #54 of 54 (permalink) Old 08-01-2004, 01:49 PM
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Quote:
Originally Posted by observant_imp
The one I printed out is:

sugar to first line
water to second line
1/4 tsp yeast
1 tsp baking soda

I don't know yet how long it lasts, but I'm getting bubbles fast enough so that most rows on the ladder have one.
That was what I measured from the original Hagen packets when I bought my units almost 2 years ago.

Actually the yeast in the Hagen packet is more like 1/8 teaspoon, if the initial rate is too high, you might reduce that some the next time. By accepting a lower initial rate, you get longer production and a more even CO2 level.

In my tanks, with HOB filters, I don't worry about the high initial rate for the filter blows off the excess.

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