• need help

  • Adam4310

Good afternoon. The mollusks in the aquarium have started to disappear. One by one, with an interval of a few days. At first, I noticed one trochus (empty) lying on the sand. A week later, the second one, and so on. Initially, I suspected the urchin (it came with the rock). But one evening, I saw the following. As I was leaving for the living room, I saw a trochus crawling on the rock. I returned to the bedroom 15 minutes later, and the trochus was lying on the sand, with some substance on it. It looked like a nudibranch, dirty gray-brown with a light spot. I quickly took it out and threw it away. It was quite large, about 4 centimeters in diameter. However, the trochuses and small urchins continue to disappear. This all happens at night. Everything is fine during the day. Moreover, the small mollusks crawling on the glass are all intact, and the filter, like a mussel, located under the anemone is also fine. From this, I conclude that it is not due to water parameters, as someone suggested to me. And yesterday, my patience ran out. I went to bed, everything was fine with the tridacna, and in the morning I woke up and was shocked—it was completely empty! If anyone has encountered this, please write. Thank you.

Alejandro

If a stone with a wheel can have something in it, the same one lies down to sleep during the day and goes out hunting at night. I read somewhere that even a praying mantis was found in living stones. It's not a fact that it's not due to parameters—maybe there's not enough calcium for large mollusks, but there is enough for small ones. Drink some coffee, take a flashlight, and keep watch all night))) Or make some bait out of mussel meat; if it eats it, then it's an animal, if not, then it's the water parameters.

Sara4035

I believe you read what I wrote inattentively. There is a large normal filter of the mussel type in the aquarium, and for some reason, it has enough calcium, while others do not. Is that right? And the acroporas that are growing and thriving also have enough. The point is that this mussel is located half under the anemone, which is why it is still alive.

Reginald5073

There is no visible mucous trail near the shells? Most often, Oenone fulgida does this - sometimes slime remains after it... just don't torment the simple fireworms.

Tracey

Maybe try to take potential victims from Aqua? Then lure them out for meat? And the tubes where it can hide on the way to the bait... Also, in addition to palolo and similar ones, it should be distinguished; these grow long ones on the snout... from the fire ones - eyes, a more uniform yellow color, greater speed, and it can crawl outside of Aqua as well.