Will assassin snails eat cichlid eggs? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 05-01-2020, 05:27 AM Thread Starter
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Will assassin snails eat cichlid eggs?

My tank had a huge bladder & MTS snail infestation initially, so I got a couple of assassin snails to take care of it. They've done their job admirably, and now I've got lots of baby assassins. Which is fine, since I've got some otos and a BN pleco who are taking care of the algae, and the assassins can clean up any leftover food from my messy eaters. I've got some angels pairing off, and they've tried to spawn a few times. The eggs don't last more than a day or so before they disappear. I'd assumed they were eating their spawn because I have too many together in one tank and they get stressed (have a larger tank most will go into, and the unpaired ones I'll probably rehome)

Will assassin snails eat the angel's eggs--even though they guard them assiduously? And if so, is it just the larger assassins, or will the smaller ones eat eggs too? I can easily remove the larger ones, but the babies are tiny and hard to distinguish from young MTS at that size. If the small assassins are going to predate the eggs, I can put the fish in the larger tank and put in some copper to kill them.

Interested in hearing others' experiences with this--thanks!
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post #2 of 3 (permalink) Old 05-01-2020, 10:16 PM
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I don't have a definitive answer but I don't think so. I've had Clea in so many breeding tanks that I feel sure I'd have noticed. My 125 planted Tanganyikan tank had so many of them I think the snails fed on each other at one point and fish spawned all the time. I can't swear that at night all kinds of things didn't go on unseen, but my gut feeling is that eggs aren't on the menu.
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post #3 of 3 (permalink) Old 05-02-2020, 06:26 PM Thread Starter
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Quote:
Originally Posted by Blue Ridge Reef View Post
I don't have a definitive answer but I don't think so. I've had Clea in so many breeding tanks that I feel sure I'd have noticed. My 125 planted Tanganyikan tank had so many of them I think the snails fed on each other at one point and fish spawned all the time. I can't swear that at night all kinds of things didn't go on unseen, but my gut feeling is that eggs aren't on the menu.
Thanks, @BlueRidge! This is helpful to know. Yes, I've been wondering if the Clea explosion means the assassins have now turned into cannibals are are killing their own. And cleaning up any uneaten food. I'll probably sell off the bigger ones, as I've got so many babies now I'm guaranteed an endless supply for the foreseeable future.
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