i think i made a mistake - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 07-17-2013, 10:43 PM Thread Starter
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i think i made a mistake

Hi, after about a week and a half my c02 was getting lower, so I changed it today. I washed it out with water only, I put a cup and a half of sugar in and a tsp of yeast. I added the hot water with about 4 to 5 inches from the top. I put it into my tank, and about 15 minutes after I noticed that the bottle was pushing in or compressing a bit. Dumby me opened the cap to the bottle, because I thought it was going to explode (didn't know if it would). The bottle filled back out, but now 5 hours later im not getting any bubbles at all. The first time I did this I got bubbles 30 minutes after. Will I need to redo the whole solution? any insight?
thanks
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post #2 of 14 (permalink) Old 07-17-2013, 11:08 PM
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As the hot water cools down, it will contract thus giving the bottle a squeezed look. Next time leave the cap off for a few minutes until the temperature stabilizes and you won't have this problem again. It won't hurt anything as CO2 gas is produced it should pop the bottle back into it's normal position anyway.
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post #3 of 14 (permalink) Old 07-17-2013, 11:46 PM
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Sounds like your water was too warm and you killed the yeast. I did this a few times. Yeast are fairly sensitive to temperature. No need to remix the solution--just add new yeast. The dead yeast will just provide extra nutrients for the new yeast.


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post #4 of 14 (permalink) Old 07-17-2013, 11:49 PM Thread Starter
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so I need to add more yeast to the solution?..do I need to add more hot water too?
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post #5 of 14 (permalink) Old 07-18-2013, 12:13 AM
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No, do not add hot water. That was your problem in the first place. Your water was too hot and you killed the yeast. Just above room temp would be the warmest you want.

Some people pre-soak their yeast with luke-warm water, but generally I found you can get away with just dumping a pack into the solution. This is especially true where you have already mixed up a solution, but it was too warm and killed the yeast. Just dump some more in.


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post #6 of 14 (permalink) Old 07-18-2013, 12:20 AM
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never hot water, warm water. I find it best to poke a finger in the water, it should feel a little warmer than you, that's how I get the best results when baking

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post #7 of 14 (permalink) Old 07-18-2013, 12:26 AM Thread Starter
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Really funny thing...I squeezed the bottle and a nice fine mist of bubbles came from the bubbler ! I guess it just needed a little help !

were should I keep an open pack of yeast? I was putting it in a bag and in the fridge..is that ok?

I ended up putting another teaspoon of yeast in

Last edited by Darkblade48; 07-18-2013 at 10:26 AM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #8 of 14 (permalink) Old 07-18-2013, 02:04 AM
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you could make your solution with water at 40 degrees and the yeast will be fine. It may take 4 hours to warm up and start working but it will be fine.

But if you are 10 degrees too warm the yeast is dead. end of story.

why not just mix it with the cold water right before bed. by sometime the next morning it should be producing,

--if you squeeze and empty bottle you will get a mist of bubbles too, but just regular air not co2

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post #9 of 14 (permalink) Old 07-18-2013, 02:09 AM Thread Starter
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I added another teaspoon of yeast..I guess I did not know I could kill it! I will not do this in the future!
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post #10 of 14 (permalink) Old 07-18-2013, 07:58 AM
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The purpose of the hot/warm water is to help dissolve the sugar into the water so you won't see it collecting on the bottom of the bottle. I either let it cool to room temps or if I'm in a rush I put it in the fridge for awhile after I dissolve the sugar. Then I add the yeast.


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post #11 of 14 (permalink) Old 07-18-2013, 09:50 AM Thread Starter
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Where do you store your open yeast packet ?
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post #12 of 14 (permalink) Old 07-18-2013, 10:28 PM
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You can store open packages in the refrigerator or freezer, depending on how soon you intende to use it.

I generally let chilled dry yeast come to room temp before adding it to a mixture. Not sure if it makes a difference.


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post #13 of 14 (permalink) Old 07-18-2013, 11:10 PM
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if you store yeast in the freezer it lasts almost indefinitely

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post #14 of 14 (permalink) Old 07-18-2013, 11:16 PM Thread Starter
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ok thanks ! I just wanted to make sure I was doing the right thing!
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