Amanos dying, help! - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 04-16-2013, 06:28 PM Thread Starter
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Exclamation Amanos dying, help!

So, I bought around 10 amanos for my 75 gallon planted about 2ish weeks ago and they were happily settled in and I didn't give it another thought, then, recently, as of 2 days ago perhaps, Ive been seeing at least 1 dead amano on the bottom of the tank every morning. I have no clue whats causing the issue, the rest of them look perfectly healthy but Im no expert on inverts. Tank temp is 76-77F, I dose Co2 through an inline injector, my first thought was gassing but non of the fish seem even mildly concerned. Ph is around 6.6 and I dose ferts with the EI method. Can anyone help me?


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post #2 of 13 (permalink) Old 04-16-2013, 06:39 PM
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There are lots of thing that could go wrong:

1. Over dose of CO2 (DIY CO2 is not ideal) Fish is stronger than shrimp.
2. 6.6 Ph is kind of low for most Neos shrimp
3. Your water parameters
4. Are there other livestock (fishes) in the tank?
5. Temperate is pretty warm, but 77 is not above the norm.
6. Shrimp can die slowly over weeks period when not introduce them properly (acclimating method count)
7. Careful with dosing ferts, it can kill off shrimps.

Edit: Are the Amano shrimps in the tank on your sig? Those are mean fishes, I'm surprise they lasted 2 weeks.

Last edited by CookieM; 04-16-2013 at 06:41 PM. Reason: Revise
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post #3 of 13 (permalink) Old 04-16-2013, 06:57 PM Thread Starter
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Originally Posted by CookieM View Post
There are lots of thing that could go wrong:

1. Over dose of CO2 (DIY CO2 is not ideal) Fish is stronger than shrimp.
2. 6.6 Ph is kind of low for most Neos shrimp
3. Your water parameters
4. Are there other livestock (fishes) in the tank?
5. Temperate is pretty warm, but 77 is not above the norm.
6. Shrimp can die slowly over weeks period when not introduce them properly (acclimating method count)
7. Careful with dosing ferts, it can kill off shrimps.

Edit: Are the Amano shrimps in the tank on your sig? Those are mean fishes, I'm surprise they lasted 2 weeks.
1. Co2 isn't being dosed in excess, ottos are generally the first thing to have problems with co2 and they are fine.
2. I really cant see Ph being the problem with amano shrimp, Ive kept them in more acidic water before
3. Water params are fine, plants and 70% WC's keep it clear.
4. The current stock is 8 rams, 35 rasboras and 7 ottos. (no problems there)
5. I know they prefer cooler water but the rams dont.
6. I acclimated them slowly over a period of hours, I cant see THAT being the issue
7. I tend to underdose with ferts, plus my older amanos have never had problems for months.
8. yes the tank in my sig, Im not sure which fish you are thinking of lol.....


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post #4 of 13 (permalink) Old 04-16-2013, 07:10 PM
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"but Im no expert on inverts."

Are you sure you're finding dead shrimp and not molts?
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post #5 of 13 (permalink) Old 04-16-2013, 07:11 PM Thread Starter
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"but Im no expert on inverts."

Are you sure you're finding dead shrimp and not molts?
Lol, don't mistake my "no expert" on being totally ignorent.


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post #6 of 13 (permalink) Old 04-16-2013, 07:16 PM
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Lol, don't mistake my "no expert" on being totally ignorent.
I guess that puts me in the "totally ignorant" category. I thought two of my four amanos died. I later saw four happy amanos.
I knew they would molt but I didn't think it would include little legs and antenna.
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post #7 of 13 (permalink) Old 04-16-2013, 07:19 PM Thread Starter
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I guess that puts me in the "totally ignorant" category. I thought two of my four amanos died. I later saw four happy amanos.
I knew they would molt but I didn't think it would include little legs and antenna.
LOL ya. About 6 years ago I was in that category. Freaked out the same way. But Ive never had this problem before.


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post #8 of 13 (permalink) Old 04-16-2013, 07:28 PM
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"plus my older amanos have never had problems for months"

From what I understand, they only live 2-3 years. Could you be losing the "older ones?"
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post #9 of 13 (permalink) Old 04-16-2013, 09:27 PM Thread Starter
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"plus my older amanos have never had problems for months"

From what I understand, they only live 2-3 years. Could you be losing the "older ones?"
No, it seems to be the newer ones, although there might have been 1 of the older ones but they arnt that old.


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post #10 of 13 (permalink) Old 04-17-2013, 05:57 PM Thread Starter
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Bump, anyone have any ideas?


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post #11 of 13 (permalink) Old 04-17-2013, 06:12 PM
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Re: Amanos dying, help!

CO2 poisoning. In my experience shrimp are much more sensitive to CO2 levels than fish, and Amanos are the most sensitive shrimp. They're the canary in the mine. When they start swimming around mid water or higher near the end of the CO2 period, it's time to dial it back.

To avoid this, I aerate the water as much as I can and aim for a maximum of 20 ppm nitrate to further minimize stress.

Snail Glades,
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post #12 of 13 (permalink) Old 04-17-2013, 09:07 PM Thread Starter
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CO2 poisoning. In my experience shrimp are much more sensitive to CO2 levels than fish, and Amanos are the most sensitive shrimp. They're the canary in the mine. When they start swimming around mid water or higher near the end of the CO2 period, it's time to dial it back.

To avoid this, I aerate the water as much as I can and aim for a maximum of 20 ppm nitrate to further minimize stress.
Hm, ok... I guess Ill dial it back and see what happens. I normally dont have almost any nitrates though.


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post #13 of 13 (permalink) Old 04-20-2013, 04:31 AM Thread Starter
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Well Ive lost nearly all of my shrimp now, definitely not co2, I have no clues at this point


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