Best fluval filter media?

I have a fluval 305 canister filter. It now contains fluval carbon and the fluval rings. I am wondering what are the best medias to put into the canister and how often i should change them?

IM thinking about phosphate remover and nitrate remover along with the carbon?

I have 6 trays

 

I have the same filter. I use Chemi-Pure Elite. It takes care of the all the things regular carbon does plus it eliminates silicates and phosphates. Plus it last up to 6 months. I kept the top tray loaded with fluval rings. I also use de-nitrate by seachem to keep nitrates undetectable.

 

alright, thanks alot. I will invest in some new additions to the filter soon

 

You can probably get away with not having the De-Nitrate. I went months without and my nitrates hovered around 10-20ppm, which I personally think is acceptable. But the Chemi-Pure Elite will save you a little on buying a phosphate removing product.

 

Alright, ill look into that product more thoroughly. Just trying to figure out the best ways to keep my params, fish and coral happy. Also the wallet and hydro bill.