ok I'm about 3 weeks into dosing my 20G with CO2 DIY
I noticed this stuff forming on the outside of my filter, any ideas?
I noticed this stuff forming on the outside of my filter, any ideas?

A joke? :troll:Pufferpoison said:any ideas?
DirkW said:A joke? :troll:
It looks like you have a seam running through the middle of your eggs caused by the plastic mold.
I would be interested in pictures of a few eggs scraped off with a razor blade, as well as the egg clump after the scraping. That is, unless you're in danger of being abducted.