None. I did have problems last year but it was because I wasn't cleaning it properly and only every 4-6 weeks. Now I completely clean it every 2 weeks with the water changes, media every 4. Since changing it up, there's been no issues, corals have thrived and I find tons of pods in it as well.

It's a fluval 305, the 405 may be a bit much for the bio cube.

I have the 100gpd BRS one and I LOVE it. I haven't' changed the filters yet though so I'm not sure if that's one of the drawback for the system.

they couldn't have had this one empty for long there are still pods in the 3rd chamber under the pump!
It is really gross under the false floors. I took out the 2 nd chamber false floor.

This is about the size of a med bouncy ball in the bottom if the second chamber it is soft, I have no idea what it is and I aint touchin it with bare hands! lol :D
http://i14.photobucket.com/albums/a331/magikof7/007.jpg

http://i14.photobucket.com/albums/a331/magikof7/008.jpg

Can I get this falso floor out of the first chamber?

http://i14.photobucket.com/albums/a331/magikof7/009.jpg

Titus, I missed your Offer for the Mp10. I'll take it if you can ship it to me. Thank you. :)