Excessive organic matter, especially decaying matter, can build up to toxic levels and kills Freshwater Fish. An example would be uneaten food or feces breaking down.
There are many chemicals that will kill freshwater snails but they will also kill fish and some will kill plants too. The best way I have found to remove snails is to have a few Clown loaches (Botia macracantha) or a couple of freshwater Puffer fish to kill and eat them.
Saltwater would kill a tetra fish! I think they are all freshwater fish and putting a freshwater fish in saltwater is a very, very bad idea.
Yes, it can.
The charged ions kill the organic matter
Saltwater, by itself, cannot kill anything. It is water, and inanimate. Therefore it has no ability to kill. However, placing freshwater fish into saltwater will certainly result in their death. Placing saltwater fish into saltwater will not result in death.
No because they will kill eachother and die :(
Fish control mosquitoes by preying on their larval freshwater-dwelling stages
Yes. There are marine Betas as well as freshwater ones. The freshwater Bettas are Siamese fighting fish (Betta splendens). The marine or saltwater is Marine Betta (Calloplesiops altivelis)and are from the Indian ocean.
If by clear water you mean freshwater than the fish will have all sorts of problems. It will be more likely to get a disease, stress the fish out, weaken its immune system, and will kill the fish.
It's not recommended to place coral or any type of sea shells in a tropical fish tank. Doing so can increase the water's hardness, and may stress the fish. Not all fish like hard water. Plus, coral is a living thing, putting it in freshwater would kill it.
Sometimes they can but I think people wouldn't put them a tank with fish cause the jelly fish might eat them so put the in a separate tank so the jelly fish doesn't kill the fish
Guppies are a gregarious tropical freshwater fish. The can safely co-exist in multiples. The male Siamese fighting fish however will kill any other makes it meets.