Hydor Sintered Quartz Bio-Rings For Biological Substrate Size:400 gm When he is relaxed or

When he is relaxed or friendly

These treats were designed and recommended by veterinarians to make following your vet's instructions simple and stress-free

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

If you have a large powerful dog or one that pulls on the lead

Hydor Sintered Quartz Bio-Rings For Biological Substrate Size:400 gm When he is relaxed orThe 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