C02 Distribution Problem - The Planted Tank Forum
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post #1 of 13 (permalink) Old 02-02-2020, 06:40 PM Thread Starter
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C02 Distribution Problem

I am currently having trouble getting my co2 from my reactor distributed throughout my entire tank which is a 75 gallon. I have tried running the spray bar horizontally on the side of the tank since I am running 2 ac 110s but the co2 wasnt getting to the other end of my tank. I was thinking of putting it in the middle between my 2 AC 110s on the back wall. Would this work? I've attached a pic of what I am trying to do. Any advice would be much appreciated. Thanks!
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post #2 of 13 (permalink) Old 02-02-2020, 06:50 PM
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that looks like it could work. How did you determine that co2 wasn't being distributed throughout? Dissolved co2 from reactor should get around pretty easily IMO.


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post #3 of 13 (permalink) Old 02-02-2020, 06:59 PM Thread Starter
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I let my drop checker sit for about 5 hours and it still gave the indicator I needed to add even more co2 unfortunately and I was at about 5 bps.
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post #4 of 13 (permalink) Old 02-02-2020, 07:11 PM
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Originally Posted by Neonlights150 View Post
I let my drop checker sit for about 5 hours and it still gave the indicator I needed to add even more co2 unfortunately and I was at about 5 bps.
Did you take several readings from different spots.


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post #5 of 13 (permalink) Old 02-03-2020, 09:54 AM
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Co2 losing fast because of the two hob filters, and 5 bubble/s is kinda slow to reach the desired concentration of co2 in a 75 gallon tank.
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post #6 of 13 (permalink) Old 02-03-2020, 10:58 AM
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5 bps in a 75 is nothing.

Should be more like a steady stream, impossible to count.

Are you targeting a pH drop from degassed value? If not, you should.
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post #7 of 13 (permalink) Old 02-03-2020, 01:56 PM
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Originally Posted by Neonlights150 View Post
I let my drop checker sit for about 5 hours and it still gave the indicator I needed to add even more co2 unfortunately and I was at about 5 bps.
If you talk about 5bps at the bubble counter attached to the CO2 gauge is nothing. In my 30G and 120G, i replace the water with mineral oil in the bubble counter in order to count bps but it is useless because CO2 is currently flowing like a stream. You should increase more CO2 input.
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post #8 of 13 (permalink) Old 02-03-2020, 02:27 PM
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My 25 gallon was pushing 5 bubbles per second, I couldn't count that fast so I matched the sound of the bubbles entering the reactor to a metronome and divided the beats per minute by 60 seconds to get me a rough bubble per second reading.

A 75 gallon running HOB filters would need multiples of what I was running, unfortunately for you a flow meter would be required to get a reading on how much gas you are running, not needed if you watch pH drop and have a decent drop checker solution.
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post #9 of 13 (permalink) Old 02-03-2020, 02:33 PM
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i agree with the others, my first post pertained to you saying you weren't getting co2 distributed throughout the tank so I was curious if you were getting good co2 anywhere in the tank with that setup. As mentioned the HOB will degas.

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Originally Posted by Neonlights150 View Post
I am currently having trouble getting my co2 from my reactor distributed throughout my entire tank which is a 75 gallon.
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post #10 of 13 (permalink) Old 02-03-2020, 04:03 PM Thread Starter
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Should I maybe take one of my ac 110s off the tank and put the filter media in the cannister? The cannister is brand new and was purchased it along with the reactor so I wouldn't be losing any bacteria. I will also increase co2 and see what happens. I only took a reading from the top right of the tank since the spray bar was located on the left side. This is my first high tech setup so I have much to learn but I think I atleast have all the necessary equipment.
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post #11 of 13 (permalink) Old 02-03-2020, 06:30 PM
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Quote:
Originally Posted by Neonlights150 View Post
Should I maybe take one of my ac 110s off the tank and put the filter media in the cannister? The cannister is brand new and was purchased it along with the reactor so I wouldn't be losing any bacteria. I will also increase co2 and see what happens. I only took a reading from the top right of the tank since the spray bar was located on the left side. This is my first high tech setup so I have much to learn but I think I atleast have all the necessary equipment.
If you transfer all the media from the AquaClear's into the canister, you wont hurt the cycle at all.

Is the tank currently stocked?

What canister are you running?

What style reactor are you running?

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post #12 of 13 (permalink) Old 02-03-2020, 09:03 PM
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Quote:
Originally Posted by Neonlights150 View Post
Should I maybe take one of my ac 110s off the tank and put the filter media in the cannister? The cannister is brand new and was purchased it along with the reactor so I wouldn't be losing any bacteria. I will also increase co2 and see what happens. I only took a reading from the top right of the tank since the spray bar was located on the left side. This is my first high tech setup so I have much to learn but I think I atleast have all the necessary equipment.
Leave the AC filters unless you don't like them aesthetically. You want that surface agitation to be able to push a large amount of Co2 into the water faster without gassing your fish.

The way that I gauge Co2 levels in the tank is by how my fish act. When dialing things in If my drop checker is green, but the fish are not bothered by it I increase it until they are bothered by it, note do this extremely slow looking for the reaction from the fish each time for a few hours afterward. Once I reach that point where the fish are bothered by the Co2 level, at the surface gulping, I back it off a small amount and then I back it off a couple budges to give my system some buffer room in case the reactor diffuses more Co2 then the current level at any point.
The most important thing is to keep an eye on your fish to see if the Co2 is still too high at any point.

Last edited by Quesenek; 02-04-2020 at 01:26 AM. Reason: Added
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post #13 of 13 (permalink) Old 02-03-2020, 09:31 PM Thread Starter
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[QUOTE=Quagulator;11304511]
Quote:
Originally Posted by Neonlights150 View Post
Should I maybe take one of my ac 110s off the tank and put the filter media in the cannister? The cannister is brand new and was purchased it along with the reactor so I wouldn't be losing any bacteria. I will also

If you transfer all the media from the AquaClear's into the canister, you wont hurt the cycle at all.

Is the tank currently stocked?

What canister are you running?

What style reactor are you running?
Yep tank is fully stocked. I am running a hydor 350 and a greenleaf reactor.
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