CO2 recipe going bonkers. Suggest a solenoid so I don't poison my fish? - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 09-13-2010, 04:29 AM Thread Starter
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CO2 recipe going bonkers. Suggest a solenoid so I don't poison my fish?

OK yall, I have a successfull CO2 story, although it's a little too successful and now I think I need some sort of shut-off to offgass the CO2 at night.

I was browsing the net for improved DIY CO2 yeast concoctions (and NOT noticing this wonderful little thread, doh https://www.plantedtank.net/forums/di...diy-setup.html).


So here's what I used.

2c sugar
1/2 tsp ammonium phosphate
1/2 tsp buffered Vitamin C powder (from my reefkeeping)
1/4 to 1/3 tsp wine yeast
1 tsp baking soda.
Mixed with RO water.



24 hours later, I'm getting more CO2 than I've EVER SEEN in my life from a DIY concoction. Hard to get a bubble count but it's easily too much for my 10g tank lol!!!

I used these DIY reactors (baker's yeast) for YEARS back in the 90's and early 2000's and never saw anything like this.



So now, how do I offgass this at night? Tonight I'm going to redirect the output of my canister filter such that it rolls the top of the water a lot more.

I could put on an air pump on a timer, but I want to avoid the bubble splash and I don't really want an airstone in my tank all the time.


Is there a solenoid that would offgass this? I know I can't use a normal solenoid since it would blow the bottle lid off and really piss off my wife.
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post #2 of 10 (permalink) Old 09-13-2010, 05:00 AM
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Re: CO2 recipe going bonkers. Suggest a solenoid so I don't poison my fish?

I think a three way solenoid might, depending on the model. Easier to add an air stone on a timer. Much easier.

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post #3 of 10 (permalink) Old 09-13-2010, 11:31 AM Thread Starter
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By "easier" are you suggesting "cheaper"?

I'll look into a 3-way solenoid.


This morning the mix is still producing a copious amount of CO2.
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post #4 of 10 (permalink) Old 09-13-2010, 11:32 AM
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use something like this for a co2 DIY system
http://freshwater-aquarium-passion.b...injection.html


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post #5 of 10 (permalink) Old 09-13-2010, 12:17 PM
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Wine yeast will work like mad for a couple days and then slow. Why dont you just pull the hose out of the water at night?

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post #6 of 10 (permalink) Old 09-13-2010, 04:27 PM Thread Starter
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Chad, the only reason I don't want to do that is b/c of the likelihood of me forgetting. I need something automated since I have ADD level 50.

Also, the hose is tapped directly into the side of my Rena Filstar intake, and removing it is quite difficult (rigid tubing and tight fit). There are other places I could disconnect it, like at the soda bottle cap, but that always has the tendency to weaken the air tubing seal..... causing a leak.


Great info, btw, yall. Thanks.
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post #7 of 10 (permalink) Old 09-13-2010, 04:30 PM
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Just put an airstone on a timer(make sure it has a check valve). Keep it in the tank near the output. By far the easiest and cheapest way to do it.
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post #8 of 10 (permalink) Old 09-13-2010, 05:03 PM
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So, in my 33, I have my co2 diffused through a Hagen Mini Elite. I have the mini elite on a timer with my lights. So when my light turns off, so does my mini. Then all I get are huge bubbles at night, that don't do anything to my water.


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post #9 of 10 (permalink) Old 09-13-2010, 05:43 PM
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thats a good idead ms nikki, I may move my powerhead for my diffuser onto my light timer. this morning when i came down before the lights came on my drop checker showed just bit more yellowish than I want. not dangerously so but close enough to worry me about my O2 greedy fish like my stingray pleco.

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post #10 of 10 (permalink) Old 09-14-2010, 01:10 PM
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Quote:
Originally Posted by msnikkistar View Post
So, in my 33, I have my co2 diffused through a Hagen Mini Elite. I have the mini elite on a timer with my lights. So when my light turns off, so does my mini. Then all I get are huge bubbles at night, that don't do anything to my water.
This is the same thing I do, and I couldn't be happier. I was concerned with the same thing as you are, especially when I was using a bubble ladder/counter. Then I found the thread on the Hagen Mini Filter, and ordered two of them (can't go wrong for $20 shipped). I turn mine on 45 minutes before the lights come on, then off at the same time the lights go off. It's made a WORLD of difference. I thought I had decent plant growth before I had put the Hagen in, but now things are just exploding.
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