2 CRS deaths (Cause for panic or no?) - The Planted Tank Forum
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post #1 of 7 (permalink) Old 11-20-2012, 10:05 PM Thread Starter
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2 CRS deaths (Cause for panic or no?)

So yesterday I found 1 headless CRS dead in the tank so the death was probably a few days old so I thought to myself perhaps a random casualty, but today I found another shrimp on it's back so this is a recent death because it hasn't been eaten at all.

I've tested parameters:

Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 0ppm (I run Purigen and have a ton of plants in a 30gal tank with 20 shrimp with a EHEIM 2213/AC50 with a biomedia mod under the output/Seapora Sponge/External Breeder Box [that I turned into a mini filter for biomedia] for filtration so yeah)

pH: 5.5 - 6.0
gH: 6
kH: 0-1
Temp: 21.5 degrees Celsius = 70.7 degrees Fahrenheit
TDS: 192

Should I be worried something I'm doing is killing my CRS or is it just possibly there time to go?

All I've done differently so far that could possibly be killing them is:

- Feed a mini spoon of Mosura BioPlus every 2 days
- Do a weekly ~ 10%WC of R/O water I obtained from a department store to lower the gH from 6 to at least 5ish and TDS to around 175 (and I tested the RO beforehand and the TDS of it is ~7)
- Dose Seachem Flourish Comprehensive Supplement (put in under 2.5mL of the stuff)
- Put in 1 API Root tab
- Dosed a small amount of prime when I dosed the ferts

I dose the ferts and prime into a breeder box so that it slowly trickles out into the tank itself and I dosed so little of the Flourish so I doubt that is the cause and I doubt macronutrients from the API root tab does anything harmful.

Am I overreacting? I have 3 berried CRS and 1 berried CBS from what I can see over the past few days and I don't want anything to happen to them, because if I get the shrimplets to hatch and survive then the 2 deaths of the adults won't be as hard of a loss.

The rest of the shrimp seem to be active by grazing the substrate and walking around.

Thanks for reading, replies (reassurances or precautions) are welcome and very much appreciated.
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post #2 of 7 (permalink) Old 11-20-2012, 10:18 PM
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How long has the tank been set up and how old are the shrimp? It's not like they really live all that long, and it's easy to panic when it might be just the natural order of things (it might be that time for the first ones you got).
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post #3 of 7 (permalink) Old 11-20-2012, 10:33 PM
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Although bioplus isn't supposed to be harmful in large doses, it's more of a once a week thing I find than every 2 days.

20g platy, , 2 x 10g shrimp, 3 x 20g shrimp, 7.5g shrimp and 1 great dane/mastiff puppy.

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My Tanks and my shrimps
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post #4 of 7 (permalink) Old 11-20-2012, 10:51 PM Thread Starter
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Tank has been pretty much fully set up since the beginning of September, and I bought the shrimps off someone around September 22nd, and they were a mix of adults and young shrimp. And the 2 that died were moderately sized adults (for sure the 2nd one was, the 1st one was half eaten so I can't really say for certain).

and I guess I've been dosing every 2 days because I thought the babies would want a good amount of biofilm and I didn't know when they would hatch, I guess I will ramp it up to every 3 days instead to not overdo it.

I suppose I'll report back if anymore shrimps die, otherwise, I'll consider these guys death from natural causes.

Last edited by shrimpzoo; 11-20-2012 at 11:08 PM. Reason: conclusion
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post #5 of 7 (permalink) Old 11-21-2012, 05:04 AM
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If we should panic on two dead shrimps, we'll all have heart attack already.

Unless there's obvious new things you started doing lately, I suggest stay put and don't make it more complicated.
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post #6 of 7 (permalink) Old 11-21-2012, 02:46 PM
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I always have problem when I'm adding bioplus-who knows why.
Try to feed baby food-small amounts.
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post #7 of 7 (permalink) Old 11-21-2012, 04:24 PM
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Cut back on feeding.

Slow water changes. and try to minimize fluctuations in water params (TDS/GH/PH)
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