Danios live for about 3-5 years. Try to get a group of danios that are the same size.
MOSTLY live in cold water
clams live mostly in cold water.
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.
i think they come from India or near there anyway
No. Danios are Tropical Freshwater fish.
sure
i have 2 fantails and 7 danios live in 14 gallon tank very happy together. danios can be known to fin nip but this is more likely to happen when there are only two or three of them. they are more happy living in schools of 6 or more. they dont bother with the fantail at all.
Clown fish are tropical marine species, they do not live in cold water.
angler fish do not live in the cold
they live in water because they have gills or they are cold blooded
Zebra Danios should live in a shoal of at least 6 fish, they are tropical (warm water), and should be fed tropical fish foods