Accidentally gassed my fish... - The Planted Tank Forum
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post #1 of 17 (permalink) Old 09-17-2010, 11:45 PM Thread Starter
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Unhappy Accidentally gassed my fish...

So, I know this may sound funny to some, horribly negligent to others, and for the remainder, no feeling whatsoever.....

Today, I tried my hand at the "Jello CO2 recipe... I didn't really follow any "recipe" per se, because there were so many floating around, but I basically made one box of Jell-o, 2 cups of sugar and 2 tbsp of yeast.

It immediately started working like a champ. I was quite pleased with myself that I got it to work nicely. So I decided to go take a quick half hour nap....

When I woke, all my Panda Cory's were floating at the top and the shrimp were moving around slowly, though seemingly less affected.

So removed the top, changed some water, dropped the water line so that my outlet agitates the water more, and of course pulled the plug on the co2...


Anyone out there have a 10gal or smaller that have found that their DIY Co2 needed curtailing? How do you do it (besides using less sugar and yeast)? Valves?

Any help is appreciated... (whew... and thanks for the therapy session...)

Regards,

Cento


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post #2 of 17 (permalink) Old 09-17-2010, 11:55 PM
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For added safety, at night you could turn on a powerhead to create surface turbulence to off gas CO2 when it isn't needed. Buy one of those $10.00 timers at Walmart to turn the powerhead on and off.

Two tablespoons of yeast is kind of overdoing it. The faster you start the reaction, the faster it will burn out so, you want to shoot more for longevity of the mixture.
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post #3 of 17 (permalink) Old 09-18-2010, 12:02 AM
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I haven't yet!! *knocks on wood* I do the traditional soda bottle stuff... not jello. I use three 2L. Two of the 2L hold 1tsp EACH of dry activated yeast. The third bottle hold 1/2tsp.

10g.
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post #4 of 17 (permalink) Old 09-18-2010, 01:08 AM
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at least you weren't.....sleeping...with the fishes


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post #5 of 17 (permalink) Old 09-18-2010, 06:31 PM Thread Starter
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Quote:
Originally Posted by steak View Post
at least you weren't.....sleeping...with the fishes

Har har.......

Well, they seem to be fine as of today.. No losses. Lesson learned. Next time measure only 1 tbsp... Usually I just rip open a pack of that Fleischman's Yest and put in into a bottle and that was it. But this time, I went out to a health food place and bought a large bag of yeast so I just guesstimated the amount that was in the packet... I guessed wrong...

Eden, THREE bottles? wow... normally just one pop bottle and its fine and dandy for my tank.... for about a week, then it gets down to about 1 bubble per minute and I need to refill it. But it gets the plants pearling and the fish are fine.... I guess though, I better invest in a "drop checker" to be sure from now on..

After a little tinkering, if this method still doesn't make DIY co2 any easier, I'll start thinking about the pressurized cylinder setup...

Regards,

Cento


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post #6 of 17 (permalink) Old 09-18-2010, 06:41 PM
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Yep 3 bottles, I hardly have an algae problem. Maybe the small occasional bit here and there on the glass, but otherwise I am pretty much algae free! I do also love watching the plants pearl, I find it very beautiful and fascinating! XD


Quote:
Originally Posted by Cento View Post
Har har.......

Well, they seem to be fine as of today.. No losses. Lesson learned. Next time measure only 1 tbsp... Usually I just rip open a pack of that Fleischman's Yest and put in into a bottle and that was it. But this time, I went out to a health food place and bought a large bag of yeast so I just guesstimated the amount that was in the packet... I guessed wrong...

Eden, THREE bottles? wow... normally just one pop bottle and its fine and dandy for my tank.... for about a week, then it gets down to about 1 bubble per minute and I need to refill it. But it gets the plants pearling and the fish are fine.... I guess though, I better invest in a "drop checker" to be sure from now on..

After a little tinkering, if this method still doesn't make DIY co2 any easier, I'll start thinking about the pressurized cylinder setup...
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post #7 of 17 (permalink) Old 09-18-2010, 08:13 PM
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what is this jello recipe?
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post #8 of 17 (permalink) Old 09-18-2010, 09:12 PM
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there is no difference in using 3 grams of yeast or 20grams of yeast except in the fact that the bacteria reach colony size density quicker (thank you beer brewing).... you dont actually wind up with more yeast from using 7 grams than you do with 3 grams, it just takes longer for the 3grams of yeast to divide into the same amount of yeast. so overyeasting isnt IMO your problem. over-injecting quite possibly. so maybe a less effective injection method like a coarse airstone rather than a limewood. etc.

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post #9 of 17 (permalink) Old 09-18-2010, 09:20 PM
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Quote:
Originally Posted by ReefkprZ View Post
there is no difference in using 3 grams of yeast or 20grams of yeast except in the fact that the bacteria reach colony size density quicker (thank you beer brewing)....
I just want to point out that yeast is not a bacterium

Anthony


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post #10 of 17 (permalink) Old 09-18-2010, 09:22 PM
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Quote:
Originally Posted by Darkblade48 View Post
I just want to point out that yeast is not a bacterium
sorry unicellular Fungi lol so used to typing about bacterial colonies that was a faux pas.

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post #11 of 17 (permalink) Old 09-18-2010, 09:24 PM
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The problem is obvious, 2 TBSP of yeast is a TON of yeast. Follow a recipe next time.
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post #12 of 17 (permalink) Old 09-18-2010, 09:26 PM
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Quote:
Originally Posted by ReefkprZ View Post
there is no difference in using 3 grams of yeast or 20grams of yeast except in the fact that the bacteria reach colony size density quicker (thank you beer brewing).... you dont actually wind up with more yeast from using 7 grams than you do with 3 grams, it just takes longer for the 3grams of yeast to divide into the same amount of yeast. so overyeasting isnt IMO your problem. over-injecting quite possibly. so maybe a less effective injection method like a coarse airstone rather than a limewood. etc.
The trouble(and yeast is not bacteria) is that when you use too much, you can't watch it and adjust.

When you change the BPS on a pressurized system you go slow. This would be like starting a tank and setting it to 10bps.
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post #13 of 17 (permalink) Old 09-19-2010, 01:59 AM Thread Starter
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Quote:
Originally Posted by CardBoardBoxProcessor View Post
what is this jello recipe?

Type a search "jello" and you'll find a thread on it here somewhere... it's pretty detailed...

The REAL problem is the inability to "adjust" anything on a DIY setup easily. There's no tuning down or tuning up. Or at least as far as I know of. The lack of a drop checker doesn't help either...

I haven't got around to ordering one yet, but I will do so after this ordeal...

Regards,

Cento


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post #14 of 17 (permalink) Old 09-19-2010, 09:35 PM
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if you don't mind another piece of equipment in your tank, try tom barr's internal venturi co2 reactor. you can modify the position of the burp hole to purge excess co2.
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post #15 of 17 (permalink) Old 09-21-2010, 01:59 AM
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When I first added co2 to my 55 gallon, all of the fish reacted terribly to it, they all would swim around at the top for a few days, then they finally got accustomed to it. Maybe you just didn't give them enough time to adjust? Maybe step it up to full power by running a powerhead for surface agitation, and slowly moving it down into the tank, slowly reducing the surface agitation...
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