Bloo
~ I learn something new ~ ~~~~ every day ~~~~
You're asking if it's harmful to ADD a filter in an established tank.
The answer simply is NO.
If however you're asking about replacing - then the answer will be "perhaps". This just depends on whether or not it's done correctly.
The answer simply is NO.
If however you're asking about replacing - then the answer will be "perhaps". This just depends on whether or not it's done correctly.
