I saw this on facebook and thought about sharing. Enjoy.
14 day old tadpole under electron microscope
http://www.sciencedaily.com/releases/2013/01/130113201141.htm
I'm with Madness on this one, I view it as apart of the bio-filter process. I do, however, scrape once in a blue moon but more often then not if I'm worried the flow being impeded by gunk on the other end of the hob in the intake. I clean those once a week cuz I got power heads moving most of...
Ohhh man an auction on Valentines day can be disastrous to some, hahah!
Is this the same auction as last year where it was tons of plants but still had uv sterilizers/hobs/and tanks?