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Hi,
what kind of soil do you use and do you have wood in the tank? Sometimes these things are toxic for shrimps.
Imke
No matter what shrimp I buy whether Malayan, Cherry, Blue, Yamato, they all die off after 1-2 days. I checked the water condition and my nitrite is almost 0ppm, nitrate is about 30ppm, pH is around 6.5.
I am having a 3-feet plant tank and inject CO2 into the tank. Lighting is about 120 watts. Plants are not bubbling but the tetras are swimming around fine and not gasping for air.
I don't remember the GH and KH but I recall they are moderate levels. Is it the nitrate? How can I bring it below 30ppm if normal tap water is already 40ppm?
Hi,
what kind of soil do you use and do you have wood in the tank? Sometimes these things are toxic for shrimps.
Imke
Last edited by imke; 18th May 2009 at 15:36.
you sure your tap water has 40ppm nitrates?
from PUB website, nitrates should be in the range of 0.5 to 15ppm
http://www.pub.gov.sg/general/Pages/WaterTreatment.aspx
what sort of ferts do you dose in your tank?
Cheers,
Melvin Lim
sad to hear your shrimp dead. what filter you using?
I have an external filter which I change every 6 months. One piece of wood in the tank which has been around for 3 years. The base is river gravel bought 5 years ago and under that is a layer of soil that I bought when I first set up the tank 5 years ago.
Nitrate is about 30ppm, is this poisoning the shrimps?
my nitrate is 5-10... so.. i think 30 is kinda high..
Last edited by NingNing; 21st May 2009 at 20:32. Reason: typo
relac man. my nitrate for one of my tank is 40ppm, i have 10 yamato inside living with angel fishes. theyr doing fine. maybe u need to aclimatize your shrimp properly. make them used to the water instead of releasing them from bag straight away.
A photo of your tank would allow us to pinpoint your problem.
I had that problem in the beginning too. Few batches all end up ending their lives. But after about 3rd try, they were even breeding like mad. Guess if it's a new tank, really need more time to stabilize the water condition. The other possible factor is proper acclimatizing as Stormy mentioned.
Need to check on the temperature of the water also. Too much fluctation in temperature is not good for the shrimps. They are generally more fragile that the fishes.
yes, I also. I change other place to buy, then the shrimp no problem in surviving.
do you mean the shrimp from the first place where you purchased from is not 'hardy' as other place?Originally Posted by michaelmah
Based on experiece soil matters as they affect ph. For my case is temp constant at 25. But ph very high about 7.4/7.6. After change to gex soil ph lowered. Next was the water change. Everytime top up water shrimps want to commit suicide. Added ketspang leaves. They ok. Subsequently also found out the powder type of anti chlorine to treat water isn't good. Change brand shrimps more stable. Now enjoying the higher survival and many breeding cycles. Of course have to buy more initially to kick start breeding. Hope this helps .
Brightsp@rky
~ Mother to 3 kids, and numerous CRS ~
Hmmm, from what I gather I don't think the gravel, wood or the filter is the problem since they were already in the tank and have been acclimatized for a few years now. The only major change is the external filter which I clean about once every 6 months and 50% water change every 2 weeks. The filter is just cotton and ceramic.
I dose with Seachem Excel, Lushgro and Sera micronutrients at the recommended dosage. For water change I add de-chlorinator.
Over the weekend on a recent water 2/3 water change I think I over-dosed on the micronutrient by mistake. My tetras and cherry barbs were reeling around like drunk and then dying. The clown loach was gasping near the surface. This despite me adding an airstone as I thought there was not enough oxygen in the tank. I don't think it could be the chlorine since I added de-chlorinator. It could be heavy metal poisoning.
They were fine after I replaced 1/3 of the water again. I think my tap water may contain too much metals. Let me try to add EDTA to see if it improves the water condition and aids the shrimp survival.
Funny thing is that I have been buying 50 tetras every year for the past 3 years and they are these small sized fishes at 50 for $5. They all grow nice and fat and big after 6 months but then slowly die off one by one. Some of them become crooked and deformed upon adulthood. I end up buying another 50 new frys. Something wrong with my water? Heavy metals?
50% WC every 2 weeks will be too much for your shrimps. They simply can't take it. Do a lesser change, it might help.
I think you have to relook on your method of raising your shrimps, or else none would be able to survive based on your current method.
Cheers.
I agree with Xmant. Too much water changed at a time is not good for shrimps nor fishes. I think your fishes and shrimps might be suffering every time you do water change for at least 3-5 days before the water stabilizes. To extend their lives to the max, we need to ensure the water quality is maintained at all times....but then, just my 2 cents.
greenaqua:
Perhaps you want to try acclimatising the shrimps this way?
koah fong
Juggler's tanks
you have co2 and also dose excel? Any copper in the sera micro? Since you dose ferts, 10-20% weekly water change is better than 50-60% every 2 weeks.
Cheers,
Melvin Lim
y dont u just get another tank for strimp... better
could it be presence of metal? i solved mine by introducing active carbon, before that the shrimps in this particular tank kept dying and dying
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