Okay, I've no problem acclimatising them, but over the days one by one they flip over and drop dead.
What are the causes of death for acclimatised shrimps? Ammonia/nitrate/CO2? Are these the only 3 causes?
Are ammonia test kits reliable? I've ruled out CO2 because all shrimp should be showing signs instead of one, right?
It's a mystery.
yamato are one of the most hardy shirmps..Originally Posted by |squee|
Okay, I've no problem acclimatising them, but over the days one by one they flip over and drop dead.
What are the causes of death for acclimatised shrimps? Ammonia/nitrate/CO2? Are these the only 3 causes?
Are ammonia test kits reliable? I've ruled out CO2 because all shrimp should be showing signs instead of one, right?
It's a mystery.
Nicholas
Newbie en el cichlid enano
Terence,
I suspect you could have high metal content in the water. What kind of water conditioner do you use? Check for Cu or Zn and Fe.
Cheers,
I have dwarf cichlids in my tanks! Do you?
Nic, yea so that's why it's puzzling. I must have spent over $50 on dead Yamatos for this tank.
Benny, I use Genesis. Well my water pipes are copper (isn't this the same for most homes in Singapore?), but previously I had no problem with Yamatos in the same tank two years ago. Is it time to change water conditioners? My Genesis is (amazingly) two years old and it's only half used.
why so secretive, using other nick?
I heard from friend, there is immitation Genesis brand in the market. I m using Seachem, so far no problem with my crs shrimp tank. May b u can try it, remember not to overdose.
I only check water temperature and ph.. once a while ammonia check..
The problem should be related to Old Tank Symptom. How big is your tank and setup, livestock? Genesis will not turn bad, I am quite sure.
My tank is 2ft, 16 gallons (56 litres). The substrate is as old as the tank (2 years approx) with numerous rescapes. I can see bubbles forming at the sides of the arcylic where the substrate meets arcylic, is my substrate turning bad?
But even if my substrate is turning bad, all the Yamatos should be experiencing problems isn't it?
BTW, I just did a water change not long ago. The Yamato that was lying on its side seems to have recovered!
Its either CO2 (too high), NH3/NH4/NO3(100ppm+) or poor O2 (do strive for some surface movement which will add some O2 if it gets low.).
Regards
Peter Gwee
Those bubble could be methane or hydrogen sulfide. Depend on the severity of the problem some Yamato may take a longer time to feel it.My tank is 2ft, 16 gallons (56 litres). The substrate is as old as the tank (2 years approx) with numerous rescapes. I can see bubbles forming at the sides of the arcylic where the substrate meets arcylic, is my substrate turning bad?
But even if my substrate is turning bad, all the Yamatos should be experiencing problems isn't it?
BTW, I just did a water change not long ago. The Yamato that was lying on its side seems to have recovered!
It is good to do a large WC before introducing shrimps in an old tanks, it will remove heavy metal, other toxic and not-so-toxic.
Put some MTS into shrimp tank is good to keep substrate free from accumulated gaes. But for you case now, not sure of introducing MTS will make the problem worse.
Peter,Its either CO2 (too high), NH3/NH4/NO3(100ppm+) or poor O2 (do strive for some surface movement which will add some O2 if it gets low.).
Regards
Peter Gwee
What is the level of CO2 to consider high for shrimp and fish?
I think cannot generalise the toxicity level of the nitrogenous waste, for shrimps, 100ppm of NO3 maybe fine for sometime, but for NH3/4, they will die fast.
Baton courtesy.....service with a smile!
|Squee|, what was the temp of the water when you introduced the yamato? My mom's shrimp tank temp is at 25 degree. She had added a few new yamato and none was lost. Personally, I don't like yamato as they look like aquatic roaches, running around aimlessly. But, it's her tank anyway. It's a matured tank with only water top-up and none water change as she was afraid that the cherry shrimplet might be suck out from the tank if it was done.
But what I notice is that the new yamato molt ever so often. The older batches seems to rarely molt nowadays. Could be my imagination though.
If you've learnt, teach, if you have, give.
Don't walk behind me as I might not lead, don't walk in front of me as I might not follow. Walk beside me, as my friend.
Mohamad Rohaizal is my name. If it's too hard, use BFG. I don't mind.
BFG, I do not know. I know however that the temperature is supposed to be the approx the same, since I used this acclimatisation method. Time taken was about 5 hours or more I dare say.
Baton courtesy.....service with a smile!
For my mom's case, she floated the bag for half an hour and then release the shrimp with a net. It was done last week without her informing me. I thought that the yamato had breed and grown!
If you've learnt, teach, if you have, give.
Don't walk behind me as I might not lead, don't walk in front of me as I might not follow. Walk beside me, as my friend.
Mohamad Rohaizal is my name. If it's too hard, use BFG. I don't mind.
Lol!
Just an update... no shrimp deaths observed today. I think the root cause is high nitrates... I've reduced my nitrate dosage to like 1/5 of the original. Let's see how things go.
Yamatos are extremely hardy. Recently i put my shrimps over to my hospital tank together with my sick fishes. I added chemicals containing malachite green with formalin and i put quite alot (don't know how many ppm) to treat the sick fishes and after a week they are still alive!!
Later due to my busy work schedule i had no time to change the hospital tank water for about 2 weeks. The water was very dirty as i feed alot to the fishes and they are still alive despite the very dirty water condition!!
Don't be afraid of my duck!
i thought i told you liao.. add some Seachem Equilibrium (to reduce the osmotic differential) and do a slow acclimitisation... it worked for me after similar rapid, unexplainable demises....
If you are doing large weekly water changes, that shouldn't be an issue. Look somewhere else...Poor plant growth coupled with too little surface movement is a bad combo as Tom always mention.
Regards
Peter Gwee
Alright. So far they're fine, no new deaths observed. I've changed my dosing to 1/5 teaspoon of KNO3 everyday now, so far it's alright.
budak, I did, and still do
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