what filters to use????

[lionpicasso]

Whats the difference between a protein skimmer and a filter? i have 2 filters on my 75 gal. one is a emporer filter system and a supreme filter system is that a good setup.
And what do recommend for a 75 gal.
And do i need a protein skimmer?
Thanks

 

[wallda]

That depends on what type of tank you have and what is in it. details please

 

[lionpicasso]

its a fish tank, might add coral later on .
currently i have live rock in it with 4 damsels with a algea eating fish(don't know what its called) and a blue leg hermit crab.
gonna be adding inverts soon.