Sudden shrimp death?

[Crunchycrouton]

I’m not sure what caused this. My water is perfect, but I’m going to get it checked again tomorrow just incase. I bought 3 shrimp on Monday, two blueberry and a cherry shrimp. The other two are fine, eating and all but this one died out of no where. I did a small water change just in case, but everyone still seems fine but that one. I’m nervous because I’m getting blue dragon guppies tomorrow, since I bought them online they are arriving tomorrow. Any ideas on what caused this?

 

[Naughts]

How long has the tank been running? How was it cycled?

 

[Lajos_Detari]

Is your tank fully cycled?
Usually it require 1-1.5 month for a tank to be fully cycled unless you use some live bacteria or established filter media or adding some fast growing plants.

Shrimps are sensitive to ammonia, nitrite and chemicals.

Also, take note that you need to do proper acclimatization before putting them into your tank.
If the lfs water or farm water chemistry(GH, pH) is too much different from your tank water, it may also kill them.

 

[Crunchycrouton]

Is your tank fully cycled?
Usually it require 1-1.5 month for a tank to be fully cycled unless you use some live bacteria or established filter media or adding some fast growing plants.

Shrimps are sensitive to ammonia, nitrite and chemicals.

Also, take note that you need to do proper acclimatization before putting them into your tank.
If the lfs water or farm water chemistry(GH, pH) is too much different from your tank water, it may also kill them.

Yes it is fully cycled. I let it cycle for a month even when I added bacteria. I acclimated them, but I didn’t have an issue even after that. They were living fine for A week and that one died.

 

[Naughts]

Did you add an ammonia source during cycling?
Also have you tested the water conditions for ammonia and nitrite?

 

[Essjay]

Although shrimps have a low bioload, they are sensitive to ammonia and nitrite which would build up in an uncycled tank.

"Letting" a tank cycle is not cycling a tank, unless there are a lot of live plants in which case that's plant cycling. Without live plants, we need to do a fishless cycle which, as Naughts pointed out, means adding ammonia. If ammonia isn't added there is nothing to feed the bacteria so they won't grow.
I can see some live plants in your photos - how many and which plants do you have?

 

[Crunchycrouton]

Although shrimps have a low bioload, they are sensitive to ammonia and nitrite which would build up in an uncycled tank.

"Letting" a tank cycle is not cycling a tank, unless there are a lot of live plants in which case that's plant cycling. Without live plants, we need to do a fishless cycle which, as Naughts pointed out, means adding ammonia. If ammonia isn't added there is nothing to feed the bacteria so they won't grow.
I can see some live plants in your photos - how many and which plants do you have?

It’s planted with Java fern and Anubias. And it’s all through out the tank. Also, I bought a crawfish from the same place and it just died along with another shrimp. They were in different tanks and still died around the same time. and here’s my water parameters. Also, the ammonia was 0.

 

[Crunchycrouton]

It’s planted with Java fern and Anubias. And it’s all through out the tank. Also, I bought a crawfish from the same place and it just died along with another shrimp. They were in different tanks and still died around the same time. and here’s my water parameters. Also, the ammonia was 0.

The blue one in the photo was perfectly fine, eating this morning then I came back from the store and it was dead. Same thing with my crawfish In another tank.

 

[Lajos_Detari]

You mentioned that the Ammonia is 0.
What about the Nitrite level?
Both need to be 0.

As @Naughts and @Essjay mentioned, if you didn't add any ammonia source during the cycling process, the beneficial bacteria couldn't grow.
What brand of bacteria did you use?

Anyway, assuming that your Ammonia and Nitrite is 0, the next thing that you have to watch out is chemical.
Did you use any chemical or detergent when washing your tank, filter, the bucket that you use to collect water, etc?
Shrimps are sensitive to any chemical.

By right crayfish should be more hardy than shrimps.
If your crayfish died, it means something is not right or quite serious with your tank.

I list down some basic questions:
1)Are you using any filters? What filters are you using?
2)Did you change the tanks water before adding your shrimps and crayfish (or after the cycling process)?
3)Did you use water conditioner for your tap water?
4)What is your tap water GH, pH?
5)Did you rinse the plants well before putting them into your tanks. Some plants might have toxic pesticides that are used to kill snails. This will kill shrimps and crayfish.
6)You may also want to check the fish store where you bought the shrimps and crayfish to ensure that they are kept in good conditions.

Anyway, Guppies are more hardy than shrimps but your tank must have enough beneficial bacteria to support them.
If not, you will have to test your water frequently, change the water whenever the ammonia & nitrite are higher than 0.
And feed them only once every 2-3 days if your tank do not have enough beneficial bacteria.
Also, don't clean your filter media for the first 1-1.5 month since the beneficial bacteria is still growing.

Your plants Java Ferns and Anubias are slow growing plants and won't be able to help much when you have more shrimps and fish.
Fast growing plants like Anacharis Elodea, Hornwort and Cabomba will be more useful to absorb the ammonia/ammonium in the water.

 

[Crunchycrouton]

You mentioned that the Ammonia is 0.
What about the Nitrite level?
Both need to be 0.

As @Naughts and @Essjay mentioned, if you didn't add any ammonia source during the cycling process, the beneficial bacteria couldn't grow.
What brand of bacteria did you use?

Anyway, assuming that your Ammonia and Nitrite is 0, the next thing that you have to watch out is chemical.
Did you use any chemical or detergent when washing your tank, filter, the bucket that you use to collect water, etc?
Shrimps are sensitive to any chemical.

By right crayfish should be more hardy than shrimps.
If your crayfish died, it means something is not right or quite serious with your tank.

I list down some basic questions:
1)Are you using any filters? What filters are you using?
2)Did you change the tanks water before adding your shrimps and crayfish (or after the cycling process)?
3)Did you use water conditioner for your tap water?
4)What is your tap water GH, pH?
5)Did you rinse the plants well before putting them into your tanks. Some plants might have toxic pesticides that are used to kill snails. This will kill shrimps and crayfish.
6)You may also want to check the fish store where you bought the shrimps and crayfish to ensure that they are kept in good conditions.

Anyway, Guppies are more hardy than shrimps but your tank must have enough beneficial bacteria to support them.
If not, you will have to test your water frequently, change the water whenever the ammonia & nitrite are higher than 0.
And feed them only once every 2-3 days if your tank do not have enough beneficial bacteria.
Also, don't clean your filter media for the first 1-1.5 month since the beneficial bacteria is still growing.

Your plants Java Ferns and Anubias are slow growing plants and won't be able to help much when you have more shrimps and fish.
Fast growing plants like Anacharis Elodea, Hornwort and Cabomba will be more useful to absorb the ammonia/ammonium in the water.

I use sponge filters, also, I got the guppies and they are perfectly fine in there. And, the crayfish was in a different tank. The crayfish seems paralyzed. Yesterday I was positive it was dead but it started moving it’s whisker things, I forgot what they’re called. Then it stopped moving all together. Today, it’s still the same. The eyes aren’t fogged over and the body is still flimsy. It seems to be paralyzed.

 

[Crunchycrouton]

I use sponge filters, also, I got the guppies and they are perfectly fine in there. And, the crayfish was in a different tank. The crayfish seems paralyzed. Yesterday I was positive it was dead but it started moving it’s whisker things, I forgot what they’re called. Then it stopped moving all together. Today, it’s still the same. The eyes aren’t fogged over and the body is still flimsy. It seems to be paralyzed.

I used water conditioner and I never used any type of chemicals on my tank or anything in it. I didn’t clean my filters either and I didn’t change the water before buying them. The fish store I bought them from seemed fine, but a year ago I bought some cichlids and one died but that’s all. This is the first death I’ve had in a long time.

 

[Crunchycrouton]

I use sponge filters, also, I got the guppies and they are perfectly fine in there. And, the crayfish was in a different tank. The crayfish seems paralyzed. Yesterday I was positive it was dead but it started moving it’s whisker things, I forgot what they’re called. Then it stopped moving all together. Today, it’s still the same. The eyes aren’t fogged over and the body is still flimsy. It seems to be paralyzed.

 

[Lajos_Detari]

I use sponge filters, also, I got the guppies and they are perfectly fine in there. And, the crayfish was in a different tank. The crayfish seems paralyzed. Yesterday I was positive it was dead but it started moving it’s whisker things, I forgot what they’re called. Then it stopped moving all together. Today, it’s still the same. The eyes aren’t fogged over and the body is still flimsy. It seems to be paralyzed.

It can be the crayfish is molting.
But it shouldn't take too long.

By the way, you have beautiful Guppies.

You might want to check your tap water GH, pH.
If you don't have the testers, you can check your tap water company website for the water report.
Look for the average values within a year.
Guppies require higher GH and pH for long term health.
Also, you don't want extreme GH, pH(too high or too low) for your shrimps as it may kill them.

Cherry shrimps are quite hardy but make sure no ammonia and nitrite.

 

[Crunchycrouton]

It can be the crayfish is molting.
But it shouldn't take too long.

By the way, you have beautiful Guppies.

You might want to check your tap water GH, pH.
If you don't have the testers, you can check your tap water company website for the water report.
Look for the average values within a year.
Guppies require higher GH and pH for long term health.
Also, you don't want extreme GH, pH(too high or too low) for your shrimps as it may kill them.

Cherry shrimps are quite hardy but make sure no ammonia and nitrite.

All of my shrimps have died, and thank you

 

[Naughts]

Sorry about your shrimps.
How are you testing your ammonia? And when was it last tested?