Can I add more yabbies to the ones currently in my fish tank?
Yes you can, but precautions need to be taken. The yabbies in the tank have established a territory and will defend that territory from invaders. If you just add new yabbies into this tank then the new yabbies going in will know they are in new territory and not fight very well because they are in the wrong. Those already in the established tank will fight hard to protect their homes from the invaders so a big fight will occur and lots of casualties. The only way you can avoid a all out war is to remove the current yabbies from the tank and then rearrange the tank. Move all the rocks and gravel etc to a completely new position in the tank, then drop both old and new yabbies in together. Now they are all in new territory, all will cooperate together and get along just fine without any major violence.
