Wolf Fish ID

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Get a pick of the underjaw and we could tell you
I did some personal research and it looks like the underjaw is a u shape. I also heard anecdotally that lacerdae have a less uniform blotching on the later line and it’s more random. But I really don’t know. Besides that will he murder my other fish? He’ll be going in a 500 gallon with them eventually
 
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I also do understand they’re very aggressive but can it be done in an aquarium that large?
if you feed it pellets and shrimp and kinda "tame it" a bit i know it CAN be done, but they are known to be aggressive but it also depends on the fish in that tank
 
I also do understand they’re very aggressive but can it be done in an aquarium that large?
if you fish that arent aggressive that wont mess with him, i think they will be fine (unless yours is really really aggressive) but if they are aggressive to your wolf, then game over, that just tipped him off.
 
I did some personal research and it looks like the underjaw is a u shape. I also heard anecdotally that lacerdae have a less uniform blotching on the later line and it’s more random. But I really don’t know. Besides that will he murder my other fish? He’ll be going in a 500 gallon with them eventually
It's hard to say. Nothing is definite and it depends on the temperament of your fish. With that being said I've honestly never owned a wolf that was a true killer as everyone said. All my wolves, even aimara, I've been able to keep with tankmates the same size and bigger with. The true issue comes with multiple wolves ime. Also, to differentiate between a mala and lac is pretty clear. You don't have to take the fish out of the water, just get a rough underjaw shot while it's in the tank. If it's a lac you should notice the jaw folds are parallel and if mala they will touch.

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