Normally I'll say bio-media like substrate-pro or matrix. But since the biowheel is suppose to growth a ton of BB because of its wet/dry feature, I'll focus more on mechanical and chemical.
Normally I'll say bio-media like substrate-pro or matrix. But since the biowheel is suppose to growth a ton of BB because of its wet/dry feature, I'll focus more on mechanical and chemical.
I would also place some bio in the baskets.
Just in case of a power shortage and the wheel drys out, killing all the bacteria on it,
there would still be some submerged in the baskets.