They can. Any animal can carry bacteria, and infect other animals with it.
Sewage, particularly untreated sewage, contains a lot of bacteria, and that bacteria can infect fish and kill them.
Yes it can indirectly kill fish by consuming all the oxygen in a closed water system such as a pond. The water becomes anoxic (depleted of dissolved oxygen) and the fish and other marine life can no longer "breathe".
a week minimum to make sure the good bacteria builds up and doesnt kill the fish when you put it in a week minimum to make sure the good bacteria builds up and doesnt kill the fish when you put it in
well not exactly if you want to kill your other fish then........sure! why not? if love your fish, why kill it?
because when we fish it can kill other fish
It would die. The ammonia would kill the fish if amounts were elevated.
The medicines used to kill bacteria are generally called antibiotics. Penicillin is a typical famous example.
Yes, ginger has many health benefits. It is said that it helps kill some bacteria, ex. it is often eaten with sushi either in condiment form or whole in order to prevent illness from harmful bacteria from the raw fish.
yes betta fish have to live alone or one will kill the other.
One is caused by humans, the other is not.
VACCINES
they dont eat other fish they just attack them to kill