reactor media

[smalltime]

Search feature never works but here we go-
What type of media do you guys put in your reactors and why?
Read about large vs small grain but what exactly is the differnce?
Thanks

 

[getwood65]

medium grain koralith-it's the first one i tried after doing some research and i've liked it so no sense in trying anything else.

 

[marcrothschild]

I like the coarse Koralith, I think the recirculating pump works better pumping through a coarse media. ARM turns to mush for me.