I'm about 4 months old with my reef tank.first time ever doing saltwater.things seem to be going well.my question is what is the purpose of the bio wheels and do I need them?And how often should I change cartridge in the filter?
45gallon tank
45pounds of rock
40 pounds of sand crushed coral mixed equal parts
And I have a prizm skimmer.
45gallon tank
45pounds of rock
40 pounds of sand crushed coral mixed equal parts
And I have a prizm skimmer.