diy Co2 how much is too much... - The Planted Tank Forum
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post #1 of 3 (permalink) Old 02-23-2008, 07:11 AM Thread Starter
Algae Grower
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diy Co2 how much is too much...

I have a 55gal planted tank, it gets denser every week. I started off with 2 2liter bottles of yeast mix, I have since added 2 more they are all staggered 1 week apart. I know the co2 is in the water. right now im dosing PMDD until I get my dry ferts in the mail for dosing EI and even after that until I get some more light right now im at 1.45wpg (4ft shop light with t12 bulbs) my plants bubble, I need to get a drop checker, but I was wondering really, how many bottles of yeast mix would I need to keep a steady 30ppm of co2 in 55gallons, I have no surface agitation other than the ocassional guppy or molly that splashes around. all the fish at this point are doing thier thing. not gasping or acting lathargic, I was thinking about adding 2 more bottles over the next 2 weeks, I know at 6 bottles pressurized would pay for itself over time, but right now money is a bit tight too many bills so I cannot afford pressurized until later.
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post #2 of 3 (permalink) Old 02-23-2008, 07:22 AM
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You cant really overdose CO2 with DIY setup. They might get strong at initial, but soon get weak later.

Most people would not recommend a DIY route in a 55g due to its inconsistence.

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post #3 of 3 (permalink) Old 02-23-2008, 07:49 AM Thread Starter
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stagius, I understand that most would not use DIY on a 55gallon, especially since I kinda fall in the low - medium low light area with 1.45wpg, however like I said I will eventually be upgrading to pressurized in the next month or 3, and right now 4 bottles staggered at 1 week intervals (the first bottle is 4 weeks old now) and im still getting about 1 bubble per second. I made up 2 more caps to upgrade to 6 bottles but I really dont want to overdose the tank to the fauna already there. However at 6 bottles, if I added one when I change out the 4week old bottle I would then have 2 bottles that need changed at the same time, and then the following week I would have 2 more bottles that get the same change... maybe I should go with 8 bottles so that all bottles are paired and would sorta even out the incosistancies, I read someplace about a guy that used 12 bottles on his 55gallon, I dont think I will ever let it get that bad. Maybe I should just move my diy to my 20gallon tank, but I dont have any equiptment for that tank. just a hob filter and nothing else.

I might just keep the 4 bottles going until I get the pressurized and some lights for the 20gallon since they are in the same room rather close to each other (the 20 and the 55) I could run them both off pressurized at a later time.
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