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Results 1 to 5 of 5
  1. #1

    Arrow Assassin Snail Babies - Growth Rate?

    0 Not allowed!
    I've had two assassin snails in my tank for nearly a year. I saw no signs of breeding until about a month or two ago when I noticed quite a few tiny, tiny babies. I wasn't sure if they were assassins to start with (I thought they might have been hitch-hiking pond snails on a new plant I bought and thought it'd be welcome new food for the current two assassins). Then they grew a bit...and they are definitely baby assassins...and there are hundreds of them! I had read that assassins breed slowly...well, they took a long time to breed, agreed, but now that they have there are rather a lot of them.

    So my question is. How long until they are saleable adults?
    "Somewhere, something incredible is waiting to be known." Carl Sagan

    ~ 350 Litre Tank Journal ~ ~ 30 Litre Tank Journal ~

  2. #2

    Join Date
    Feb 2010
    Ypsilanti, Michigan

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    0 Not allowed!
    I think this is a very difficult question to answer because the babies usually stay buried in the substrate for a long time. I had the same experience as you... got three of them and for a long time nothing and then all of a sudden the tank is full of them. I rarely see babies - the ones I see are always full-sized.
    300 gallon mega tank: sailfin pleco, clown loaches, silver dollars, roseline sharks, congo tetras, new world cichlids
    125 gallon office tank: Africian cichlids, synodontis catfih
    75 gallon community tank: bolivian rams, black skirt tetras, dwarf neon rainbowfish, corys, harlequin rasboras, otos, bristlenose and bulldog plecos, assassin snails, various shrimp
    60 gallon goldfish tank: fancy goldfish

  3. #3


    0 Not allowed!
    Ah right, I didn't realise they stayed buried when babies...that explains things! Perhaps they survived because I switched to soil (which I obviously don't vac at all) as opposed to the coral sand I had before (which I did vac). Will be interesting to see how they come on. At least I won't have to worry about excess feeding with these critters!
    "Somewhere, something incredible is waiting to be known." Carl Sagan

    ~ 350 Litre Tank Journal ~ ~ 30 Litre Tank Journal ~

  4. Default

    0 Not allowed!
    I used to breed them in a seperate tank... the trick is not to disturb the substrate and only have a very thin layer so its easy to clean... they stay in the substrate for about 3-4 months then you will see mini assassins emerging.... they get to a nice enough size after around 6-8 months. I also found they dont breed as much if they dont have live snails to eat...

    Its worth the wait =d!
    Last edited by -Alex-; 02-26-2013 at 10:41 PM.

  5. #5


    0 Not allowed!
    Interesting. Thanks for the info.

    I had a closer look at my substrate tonight and I spotted tiny (almost too small to see) white snails under the soil against the glass...and...what looks like assassin eggs. I'll have to set up an assassin snail business.
    "Somewhere, something incredible is waiting to be known." Carl Sagan

    ~ 350 Litre Tank Journal ~ ~ 30 Litre Tank Journal ~

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