What filter media should I use for my red ear slider's canister filter.

Question

Its a Fluval 305 and shes in 30 gallons of water

Answer 1

use some type of prefilter on the bottom like the bags of cut your own filter cartridge foam stuff. then carbon in the middle then use biomax on the top i think they sell it at petco and petsmart. I have 2 turtles in a 29 gallon and it works great for me!!!!

i hope i helped!!!