I don't even have a filter in my goldfish tank. I just put a small airstone in each tank as it gives them air enough that they don't need to sleep at the surface. As for the heater, these are more of a cool water fish so I don't worry.
I don't even have a filter in my goldfish tank. I just put a small airstone in each tank as it gives them air enough that they don't need to sleep at the surface. As for the heater, these are more of a cool water fish so I don't worry.
"There are two things which cannot be attacked in front: ignorance and narrow-mindedness. They can only be shaken by the simple development of the contrary qualities. They will not bear discussion."
Lord John Emerich Edward Dalberg Acton
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