What's everyone keeping their CO2 at? - The Planted Tank Forum
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post #1 of 22 (permalink) Old 06-11-2005, 10:16 AM Thread Starter
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What's everyone keeping their CO2 at?

Out of curiosity, what CO2 levels is everyone maintaining.

Me

KH = 4.5
pH = 6.3
60-ishppm CO2?

Light = 192w
Fish all seem fine, but wondering if I should perhaps lower things some. I boosted it to keep algae at bay, but thinking I could back off.
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post #2 of 22 (permalink) Old 06-11-2005, 10:30 AM
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Im in the exact same range... I really believe the values are a bit like wpg... just a basic guideline.
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post #3 of 22 (permalink) Old 06-11-2005, 12:09 PM
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30-40 for me
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post #4 of 22 (permalink) Old 06-11-2005, 12:09 PM
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45ppm here

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post #5 of 22 (permalink) Old 06-12-2005, 10:21 PM
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Between 10 and 20 ppm. Along with medium light levels... less biomass production, less frequent pruning.


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post #6 of 22 (permalink) Old 06-13-2005, 01:31 AM
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Okay, just today I convinced myself my new setup (refilled tank and SMS122) doesn't have a leak. So, I'm back to targetting: pH=6.8 with my tap KH=7.5, so CO2 ppm ~ 35.
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post #7 of 22 (permalink) Old 06-13-2005, 01:33 AM
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Quote:
Originally Posted by motifone

Me

KH = 4.5
pH = 6.3
60-ishppm CO2?
I third that.
jB
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post #8 of 22 (permalink) Old 06-13-2005, 04:14 PM
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I aim for 35ppm on my 75gallon, 30ppm on my 20's and 29.
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post #9 of 22 (permalink) Old 06-13-2005, 04:52 PM
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60ish for me, too. And it has no bloody affect on the blasted Cladophora...except to keep it a pleasant shade of green

óBill

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post #10 of 22 (permalink) Old 06-13-2005, 04:58 PM
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30-40 for me too.

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post #11 of 22 (permalink) Old 06-13-2005, 06:54 PM
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50 ish over here.
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post #12 of 22 (permalink) Old 06-13-2005, 10:06 PM
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bout 35ppm but im considering increasing to 50-55 cause I have very high light
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post #13 of 22 (permalink) Old 06-13-2005, 10:41 PM Thread Starter
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I've since retested.

My KH is 5. And I have decreased my CO2 injection, bringing up the pH from 6.3 to 6.6-6.7.

Why? My recently bought Red New Guinea Rainbows lost their color a day after putting them in my tank. I waited a couple weeks and saw no improvement. So, I decided to raise the pH by decreasing CO2 injection. Hours layer, color returned to 2 of the 3 fish.
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post #14 of 22 (permalink) Old 06-13-2005, 10:46 PM
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Quote:
Originally Posted by motifone
I've since retested.

My KH is 5. And I have decreased my CO2 injection, bringing up the pH from 6.3 to 6.6-6.7.

Why? My recently bought Red New Guinea Rainbows lost their color a day after putting them in my tank. I waited a couple weeks and saw no improvement. So, I decided to raise the pH by decreasing CO2 injection. Hours layer, color returned to 2 of the 3 fish.
Im with you on your thoughts here. I havent lowered my co2 yet, but I plan to get my plants and ferts balanced then start backing off my CO2. I havent had probs with aclimated fish, however, adding new fish is always hit or miss. I attribute much of this difficulty to the very high CO2. Sadly, my plants are more important right now, but soon more delicate fish will be moving into the hood......I will have to cater to them.
jB
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post #15 of 22 (permalink) Old 06-14-2005, 12:24 AM
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Chuck's calc says I have 38 ppm co2...that's with pH of 6.6 and kH of 5...I actually try to get my pH to 6.4 which almost doubles the co2...but in all likelihood it only gets to about 6.5

Re-boot!
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