Cycling new tank with pressurized co2 - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 12-17-2017, 02:43 PM Thread Starter
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Cycling new tank with pressurized co2

Hi. I'm new to this forum and wanted to get some opinions on cycling a new tank with pressurized co2. I'm starting a 75 high tech that will be heavily planted. I will be starting pressurized co2 on day 1. I was wondering if this will slow down the cycling process at all? This will also give me a few weeks to dial in my co2 before I add fish. Sounds great on paper but does anyone have an experience? Thanks in advance.
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post #2 of 5 (permalink) Old 12-17-2017, 02:56 PM
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I might do it a bit different. One biggie for me is that different fish react in different ways to being moved and new water. They also have different levels of tolerance to CO2. I find moving fish from CO2 enriched to non-enriched tanks is no problem but moving them back, they often struggle for a few hours.
Given these two areas, I would suggest keeping the acclimation process a little less complex, move the fish and then do the CO2 gradually as I watch the fish for signs of stress. I take a week or more to get it up to full blown levels of CO2.
Part of my overall planning is to not do too many things at one time. In that way, I can have fewer questions when/if things don't look right. If I move fish and they don't like the water, it is easier to sort out solutions than if I move fish and they don't like the water or is it they can't stand the CO2.
I don't see much connection with the cycle and CO2 but just like to keep things simple. Not sure I could really do the detail setting on CO2 without having the fish there. The "preferred" levels on CO2 always have to take the fish into account and may need to be adjusted.
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post #3 of 5 (permalink) Old 12-17-2017, 03:22 PM
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Well, no direct experience because I've never started a tank W/ CO2 preferring to KISS till water parameters started stabilizing on their own.
One possible "problem" is that the beneficial bacteria (majority) grow slow and prefer more alkaline water..

Adding CO2 in quantities and creating a lower pH (depends on water ect) could slow the process down a bit..
I had one tank when I first started using CO2 that apparently had an overdose of CO2 (regulator had gauge issues, but the CO2 levels never affected fish) wipe out the beneficial bacteria..
NOW this was sort of circumstantial since the "proof" was a large heterotrophic bacteria bloom but the only cause would be a large dump of organics from somewhere..i.e dead something.

Never read anything definitive regarding CO2 and cycling though..
This I found interesting.. YMMV..
Why We Should Not Fishless Cycle Planted Tanks. | Tropical Fish Forums

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post #4 of 5 (permalink) Old 12-17-2017, 04:28 PM Thread Starter
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Hmm. Maybe I'm getting ahead of myself. I was envisioning a heavily planted tank, fishless cycle and everything dialed in perfect before I added the fish. I also need to research acclimating fish in co2 rich water. Anyone have experience there ?
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post #5 of 5 (permalink) Old 12-17-2017, 05:32 PM
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Plant your tank heavily and let the CO2 rip! I wouldn't worry about cycling. Whenever you introduce fish, you may want to temporarily dial back the CO2 and then drip acclimate them.
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