Seriously, why would you want to? Is there something special about poison sumac?
No.
Provided they will not leach sap into the water they should be OK. Otherwise the twigs/branches could poison the fish. Most smart people use live water plants as decore in their fish tanks.
no. they live in mud.
Aliens put a poison in them
There is a fountain outside Draynor Manor. Use the poison with the fish food (you will find these two items inside the Manor) on the fountain to kill the Piranhas. Search the fountain, and the pressure gauge is yours for the taking.
they put them in their fish tanks and admire them
You can put some but not all cold water fish in tropical tanks for example you can put zebra danios and mountain minnows with tropical if you gradually increase the heat. You cannot do this with goldfish. It depends what fish you have.
No, it is not possible to put a shark in a regular fish tank because sharks require much larger tanks with specific conditions to thrive.
Not if you don't put them together. Amphibians poison the water for fish.
It is never right to put Amphibians in with fish. The amphibian will poison the water.
No, it is not recommended to put lucky bamboo in a fish tank as it can release toxins that are harmful to fish and other aquatic life. It is best to choose aquatic plants that are safe for fish tanks.
No, it is not safe to put bottled water in a fish tank as it may contain chemicals or minerals harmful to the fish. It is recommended to use dechlorinated tap water or water specifically designed for fish tanks.