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bertoni · 02/09/2018, 02:53 PM

That's a bit of algal or microbial growth. You could scrape it off if you'd like. At some point, you might need to add a couple of snails to keep it under control. I'd just wait for now.

02/09/2018, 02:53 PM	#15
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	That's a bit of algal or microbial growth. You could scrape it off if you'd like. At some point, you might need to add a couple of snails to keep it under control. I'd just wait for now. __________________ Jonathan Bertoni