The biodegradable 0.25g Red Tracer BBs from High Power Airsoft are back at Airsoft Atlanta... "0.25g RED FLOU HPA High Power Airsoft Bio 2000 BBs Bottle - Glow Tracer - Glow in Dark RED COLOR Tracer Ammo. These are bio tracer BBs in .25 gram weight. Very rare type of BB!  Fully biodegradable high-grade airsoft BBs for use in upgraded guns. These have a cult following of users. Great BBs with a proven track record. If you need bio style, consider these.

Red bright color for easy visibility.  Polished and perfect heavyweight style BB - ideal for all airsoft gun types."