I've been eyeing the MarinePure bio balls for a while and finally got some. I bought 20 thinking that would be enough for my HOB but in reality it was barely enough to fill half.
Anyway, I thought I'd share pictures of my application. I'll try to report back in a few weeks with any results I notice. I'll probably buy more in the future to fill the rest of my HOB. Its about time I have some real media in my HOB instead of the lousy stock cartridges.
Out of the box and rinsed in the bag:
In the HOB
A lot of people say just use lava rock, and while that may very well work, these look like they'll flow water through them better than lava rock will.
I was very please to work with Darkestsky. Very good communication and product showed up in 2 days!