There are a bunch of systems on ebay. I don't see any offhand that don't come with the DI
, but they're VERY cheap anyway. you could try contacting the vendor, as I know that filterdirect.com sells things individually.
Or you could just get a 2nd DI
54g all-glass bowfront corner planted FW
Red tiger lilly, Rotala Indica, Sagittaria Subulata, Micro Sword, Cardinal Plant
Fluorite Black sand and gravel