If the metal is powdered, or lead variant. It /will/ kill the fish. However if its something like plating or tinfoil, it should be let be, but not ignored.
Goldfish are cold water fish while the others are tropical, so no they won't as depending on what type of tank you put them in, one group will die.
LS400 fuel tank is metal.
The longest tank kill in history was recorded during the gulf war. A British Challanger 1 tank recorded a kill on a static T-62 at 5.1km. The challanger 1 recorded over 300 enemy kills with no losses. This tank kill is still the longest tank to tank kill ever recorded.
yes
It's metal.
If you can smell the 'aroma' of your tank of fish then you urgently NEED to CHANGE ITS WATER NOW!!. You have far too many fish in the tank. The rule for keeping fish healthy is "1 inch of fish needs 1 gallon of water".its not aroma its amonia and goldfish have it, its puts it off and if theres enough of it it waill kill the other fishAmonia is produced when any kind of creature is living in water (not just goldfish). It is a deadly poison and will kill most living things. That is why you need to change the water urgently. Most smart people use a properly set up filter in their fish tank(s). The filters job is to use good bacteria to turn the amonia into harmless nitrate. Even then you should still do regular water changes if you want healthy fish.
The main advantage of having a holding tank that is made of plastic over metal ones would be that it would last longer. One that is made of metal could rust and corrode but a plastic one would not have those problems.
yes, if you put another male in the tank they will kill each other, if you put a female in the tank and they are not ready to breed the male may attack the female and kill her.
To humans no. To other fish in the tank, if you are thinking of having one, they can be. They are very territorial, and if stressed or if they die they can release a toxin into the water that will kill other fish. Although they are slow, if they catch their prey they will kill it. It is not the easiest of pet to keep.
Yes they will die if you do take them out of there tank BUT they hatch them self
with a bazukaa
No absolutely not you will kill the fish.