Hydor Sintered Quartz Bio-Rings For Biological Substrate Size:400 gm moveable D-ring

moveable D-ring

With a mix of fruits and almonds this tasty toy will definitely keep your birds attention

When he is relaxed or friendly

Small grain size and rounded shape for less chance of impaction

the product may turn cloudy in the bottle

Hydor Sintered Quartz Bio-Rings For Biological Substrate Size:400 gm moveable D-ringThe Hydor Sintered Quartz Bio Rings, 450 grams, are an ideal substrate for biological filtration. High surface area and the macroporous structure of the rings facilitates efficient growth of colonies of beneficial bacteria, both aerobic and anaerobic. Bio Rings do not release phosphates or heavy metals and do not effect pH of the aquarium. For freshwater or saltwater aquariums. PH neutral High Surface Area Easy to Use Ideal for optimal biological