Tropical Fish Keeping - Aquarium fish care and resources

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laurab 08-22-2008 11:42 AM

freshwater baby lobsters
We bought a freshwater lobster at the fish store and a month after we brought her home she had babies. I have only noticed four the entire time, one of them is not growing though, it is about a half inch long and the other three are about 2 inches now. Does anyone know what caused this? Also will I need to remove the babies from the tank at some point? The mom is about 4 inches long and the tank is 50 gallons.

fish_4_all 08-22-2008 02:39 PM

It depend son the type of lobster/crayfish. Blue and yabbies can get aggressive but they would have probably killed the others already if it was gonna be an issue. Can you get a picture of it so we can try to identify it? This would help us know if there is gonna be a need to actually remove the others or if you can leave them be.

As for the smaller one, it could be getting bullied out of food or might be a dwarf mutation. It could also be an issue of a hormone release by the others that may keep that one smaller but I don't know how much information I have read on this phenonemon is accurate.

iamntbatman 08-22-2008 02:41 PM

They're known to cannibalize one another, especially of some of the young lobsters get more food and thus grow quicker than others, so it would probably be a good idea to try to separate them.

What kind of lobster is it? Some stay fairly small while others grow quite large, so knowing the type will be a big factor in how many you can safely keep in the tank.

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