it would eventually shock the fish and kill them
yes
To prevent shock which could kill your fish.
well yea its could kill fish but some of the exhaust push the water really hard so the fish well go with the water and well not get killed
no a water pump can not kill a fish
Any dead creature in the water will putrefy and the resultant putrefaction will kill any fish in that water. So yes the dead crab will kill the Betta eventually.
Simple answer is "eventually yes".
If the jar has water in it with the fish, you will kill them.
The fish could swallow the contaminated water and get into there system and they could die OR the acid rain could destroy their habitat and kill the plants and greenery.
Yes, chlorine is harmful to fish and can kill them if they are exposed to high levels of it in their water. It is important to always use a dechlorinator when setting up a new aquarium or performing water changes to make the water safe for fish.
Yes. The sap from fallen pine needles (conifer) could poison the water and kill the fish.
eventually, yes