Wondered if anyone had a BOYU EF-05 external canister filter and Know when to change the filter media.

Question

please help

Answer 1

When the water flow slows down clean out the fitler media in old tank water. Only replace it when you cant clean it any more (it's fallen apart). If you do have to replace things dont swap out all the elements at once, that will mess with the cycle in a big way. Just do one pad or cartridge at a time.

If you have a carbon element, swap that out every 6 weeks or so, the carbon fills up with the stuff it's absorbing and does need replacing.

The other mechnical and biological elemants can be cleaned and re-used.

Ian

Answer 2

I can say this:

Bacteria are going to live in your filter no matter how much the filter cost.

So no matter what kind of filter you have your going to need to rinse it with old tank water monthly and replace after 3 months.

This is a guideline.

If you have a well to overstocked tank.. you'll need to do this more often

You dont want bad bacteria coming in and killing off your good bacteria. This process will ensure that your good bacteria maintain a healthy level.

You should have several different types of filter media and you should not change them all at once to ensure that you keep a good numbers in there at all times.

Hope this helps!