• Shrimp are dying.

  • Danielle

Hello everyone! I encountered a problem - it's unclear why the shrimp are dying. I introduce them to the aquarium - there are no issues, they are active and swim for food. After 2-3 weeks, I find their bodies. The bodies are intact and undamaged. Moreover, 1-2 days before their death, they become less active. This situation has been observed with both Lysa debelius and Lysa amboinensis. What could be the reason?

Phyllis

many things need to be clarified: - who else lives besides the shrimp? perhaps someone is chasing them/trying to eat them + there is interspecies aggression, but if "the little bodies are intact" - check for any exposed copper wire in the aquarium, ideally a copper test

Mark9853

How are the corals doing? Are there any tissue necroses, etc.? At the same time, there may be the impact of toxic decomposition products on the sensitive gills of these crustaceans. What do you feed the shrimp? Poisoning from poor feed is possible, as well as the possibility that the animals were undernourished during capture in the wild.

Richard2180

The corals are doing well. As for the shrimp feed, I am feeding them with artemia, just like the fish. Regarding the possibility of being underfed - unlikely. Some shrimp came from suppliers, while others are from the aquariums of forum members.

Frederick

What about kN, pH, Calcium, Magnesium? It seems they can't molt... I recommend buying from you-know-who or catching Black Sea shrimp. Just like they sent Belka and Strelka ahead of a human into space. If the not very picky and quite inexpensive Black Sea ones adapt and molt normally, then we can move on to exotic ones.

Dana6523

You are probably right about the molting. Shortly before their death, I was pulling the shells of the shrimp out of the aquarium. kH=8, pH=8.2-8.3. I didn't measure calcium and magnesium since there are no hard corals - I thought it wasn't necessary. What water parameters should be for the successful molting of arthropods?

Mark9853

I believe the reason is also related to molting - a critical period in the life of shrimp, during which their mortality is at its highest. This process in crustaceans occurs not only due to their growth but also as a result of stress caused by sudden changes in environmental conditions. This can happen when transferring them from one aquarium to another, sudden decreases or increases in salinity and temperature, changes in the regime and amount of water changes in the aquarium, and the levels of trace elements, especially calcium. Water parameters: pH 8.2-8.5 temperature 27 degrees Ca 350 ammonium - 0 nitrite - 0 nitrate < 20

Tonya

In my opinion, a stable K.N. is necessary during molting and throughout life.

Derek7322

At first, I added iodine to the aquarium, which triggered an unexpected molting and then the death of the shrimps. Iodine can be present in some vitamins... please pay attention to this...

Mary

Randy's article - There is information that iodine is necessary for molting and should be added regularly. But the dosage is ... 1 drop per 200 liters. Overdose is dangerous, while underdosing is useless. How do you calculate that drop for your liters? I once added pharmacy iodine in hopes of treating the white fuzz on the clownfish. The fuzz went away, and I stopped adding iodine.

Brian

I haven't thought about iodine for 2 years, the shrimp feel better than ever, they survived the attack of the caridina and are growing and molting calmly at the right time, and I have about 10 of them, including Sharon, Debelius, Lismat, Boxers, Camels, and others that can only be seen at night and in a drunken state... I believe that it's not worth adding iodine, as it's easy to overdose...