[hobbzz]

I'm in the process of finishing up my 20L with 10g sump. I used acrylic for the baffles so I could cut them myself. Silicone bonds to glass MUCH better, but if you use a crapload of silicone on acrylic you won't have any problems. I used a table saw with a regular blade on it, 72 tooth I think, and weld on #3. Turned out fine. I also used black glass for the overflow, and they were off by about 1/8 to 1/16 of an inch which was a pain. The glass cost me $28, where as the acrylic (acrylite) from Home Depot cost $24, and I got about 6 times the amount of acrylic than I did glass. I just used a 100 grit sandpaper for the edges of the glass and it worked fine.

I might make a custom sump in the near future, and if I do it will be all acrylic.