Amano shrimp over sensitive to CO2 - The Planted Tank Forum
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post #1 of 9 (permalink) Old 04-02-2020, 08:58 PM Thread Starter
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Amano shrimp over sensitive to CO2

Hi guys, so I recently got some amanos to help deal with a constant green hair algae problem that occurs in my Java moss. I know some shrimp can be sensitive to co2 but from what I read, most people indicated amanos do fine as long as the co2 is within the right limits. I reduced my bubble rate but some signs of distress. One goes to the top of the filter and claws at the surface, the others go to higher elavations too and become inactive. Some do fine and stay at the bottom. I measured the co2 by using kH pH readings and found the co2 should be around 10ppm in the tank so pretty low...

I also have a color indicator on the tank that shows dark blue so definitely not up near 30 ppm.

Any reason why these guys are being so sensitive? Any way to acclimate them to higher co2 levels?
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post #2 of 9 (permalink) Old 04-02-2020, 10:00 PM
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Did you just put them in the tank?
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post #3 of 9 (permalink) Old 04-02-2020, 10:14 PM Thread Starter
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They've been in out 4 days now. All eating fine. Twice I've tried adding co2 and both times they've acted distressed.
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post #4 of 9 (permalink) Old 04-02-2020, 10:26 PM
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I've had no problem with Amanos using normal co2 levels. Whenever I buy them I turn off co2 and then slowly ease them into it. Looks like your not running high levels. You can also check co2 by looking at your ph drop from gassed to degassed. A 1.0 drop usually indicates a good range of co2. The Kh/Ph table is not that reliable.


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post #5 of 9 (permalink) Old 04-02-2020, 10:34 PM
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I keep Amanos in my tanks with at least 35 PPM during the day without changes in behavior. I can't say for sure what is making them unhappy in your tank obviously, but I would suspect there's something besides CO2 levels distressing them.

Nothing good happens fast in an ecosystem.
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post #6 of 9 (permalink) Old 04-02-2020, 10:54 PM Thread Starter
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Maybe I just need to acclimate very slowly? I'm pretty sure it's the co2 because first day I turned it on and they acted like this, then the next two were fine, turned it on again and they're acting weird again.
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post #7 of 9 (permalink) Old 04-02-2020, 11:04 PM
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Are you certain that O2 levels are solid?

Nothing good happens fast in an ecosystem.
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post #8 of 9 (permalink) Old 04-02-2020, 11:10 PM Thread Starter
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How would you go about determining that?
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post #9 of 9 (permalink) Old 04-02-2020, 11:27 PM
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I mean, there are tests that can be bought, but the biggest thing is amount of surface agitation, flow, movement, etc. I run airstones in my CO2 injected tanks, as well as have a filter pouring in. It offgasses a bit of the CO2 I put in but was THE difference in being able to get to my target levels and still have livestock. Your CO2 tank will last about 75% as long as before from what I can tell so far.

Nothing good happens fast in an ecosystem.

Last edited by Blue Ridge Reef; 04-02-2020 at 11:55 PM. Reason: Stupid bump system
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