Usually there is a heater that warms the tank on purpose.
no tropical fish need warm water
No. The temperature variation will kill one or the other. (Too warm for cold water fish, too cold for tropical fish)
None, goldfish are cold water fish, so having a tropical fish as a tank-mate just wouldn't work because tropical fish need to live in warm water.
No! marine fish are salt water fish and tropicals are fresh water fish, this cannot be changed.
Yes u can, they would actually thrive!
its for tropical fish and salt water fish. they need to have warm water to survive cause were they live is really warm waters
You would not put tropical fish in a tank of cold water because the live in warm climates and need a temperature of 24 - 26/28 degrees Celsius to survive.
Well, the correct answer is no. But when I kept my tank at room temperature, I had no problems.
U buy tropical fish and get a background and then that is how u can do that
Its probably from the filter you are using, and probably from the natural fish oils.
Fresh water ive got one in my tank
a fish tank size would depend on the size or how many fish you want to put in or if its tropical the tank would have to be measured and remember to get the water tested you don't want to kill the fishs