Eletric Blue Lobster/Crayfish
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Eletric Blue Lobster/Crayfish

This is a discussion on Eletric Blue Lobster/Crayfish within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Hi all, I am new to the forum. I recently started a 10 gallon fresh water tank. I got 2 glass fish, 2 hatchet ...

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Eletric Blue Lobster/Crayfish
Old 01-28-2010, 12:15 AM   #1
 
Eletric Blue Lobster/Crayfish

Hi all, I am new to the forum.
I recently started a 10 gallon fresh water tank. I got 2 glass fish, 2 hatchet fish and 1 otocinclus so far. I went to the pet store today and saw this really cool eletric blue lobster, so I decided to take it home. And most of you probably know what happen. Yes, it started to attack my otocinclus like crazy literally 10 minutes after I put it into the tank. so my question is
1. Will keeping it full stop it from attacking other fish?
2. Is there some sort of cage that I can buy to trap the lobster in and keep everything in the same tank?
2. Are my glass fish safe?

Thank you all in advance
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Old 01-28-2010, 12:20 AM   #2
 
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I'm sorry, but the answer to all 3 questions in no. In a 10 gallon, the crayfish will eventually eat every fish. Then it'll escape and die. I would return it if I were you, or get it it's own 20 gallon tank. A 10 gallon is too small to contain a crayfish. They are master escape artists.
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Old 01-28-2010, 12:29 AM   #3
 
Well, I am not trying to challenge you here. The hatchets swim at a pretty high water level and as far as i see, the crayfish cant even swim to the mid level. How can it eat the fish?
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Old 01-28-2010, 12:31 AM   #4
 
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Trust me...they can swim easily enough. I've seen freshwater crustaceans, including my own swim through all levels of the tank...even upside down to get food floating at the surface.
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Old 01-28-2010, 12:41 AM   #5
 
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Quote:
Originally Posted by madfeelso View Post
Well, I am not trying to challenge you here. The hatchets swim at a pretty high water level and as far as i see, the crayfish cant even swim to the mid level. How can it eat the fish?
It hunts they while they sleep. At first it'll miss and the fish will get away. You'll notice their tailfins are shredded. Once that happens, the fish is much slower and can't get away as easily. In a 10 gallon, a very high percentage of the tank is within the crayfish's reach, unless you just leave the tank empty without any decor.

Also, the fish will be highly stressed having a predator in the tank with them, disrupting their sleep with it's nightly attacks. That stress will weaken them and possibly make them sick, and that's when the cray catches them.

Last edited by jaysee; 01-28-2010 at 12:44 AM..
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Old 01-28-2010, 12:51 AM   #6
 
Awesome. Thanks for the very clear explanation
I guess I am returning it tomorrow......
Also, what other cool creature such as the crayfish would you recommend to raise in my tank?
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Old 01-28-2010, 12:58 AM   #7
 
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You could get a dwarf crayfish. They stay under 2 inches and aren't big enough to take a fish, excepy maybe neons. I keep one in a 5 gallon with a betta and a mystery snail. Chances are you'll have to order them online. I got mine from aquabid.
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Old 01-28-2010, 08:26 AM   #8
 
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I can only back up what was said before; no blue lobster in a 10g and no fish with him and no group of hachets in a 10g.
The only thing you could house ONE par of in a 10g is Camballus patzuarensis orange (CPOs) with small fish that'll suit the tank size and your water parameters!
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Old 01-28-2010, 12:32 PM   #9
 
I saw a "Hammer Cobalt Blue Lobster", which only grows to ~4". Would you still consider this guy to be too agressive with tankmates (LiveAquaria says they typically won't bother fish)? How about in a larger (40-50g) tank?
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Old 01-28-2010, 01:15 PM   #10
 
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Quote:
Originally Posted by LMychajluk View Post
I saw a "Hammer Cobalt Blue Lobster", which only grows to ~4". Would you still consider this guy to be too agressive with tankmates (LiveAquaria says they typically won't bother fish)? How about in a larger (40-50g) tank?
Same as the regular ones, it depends on the tankmates and on the tank size. The problem with keeping a cray in a 10 gallon with tankmates is that the crayfish is ALWAYS just around the corner, and it's not good for fish to be perpetually hunted. In a larger tank this would not be as much of an issue, but again it depends on the tankmates. Another reason, that I forgot to mention, that barbs are such great crayfish tankmates is because they have a little chip on their shoulder. I'm not saying cherry barbs are aggressive, but they are barbs and have a certain.....tenacity. While they respect the cray, they aren't afraid of it. Tank mates that fear the crayfish will get stressed by it and develop problems.
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