- 1, The Bio Rings were fired by high temperature.
- 2, Great material for the growth of nitrifying bacteria.
- 3, PH Neutral.
- 4, Suitalbe for fresh water and sea water tank.
- 5, Do not often change these rings.
- 6, After six month used, change half of them and use new rings with the rest old rings
Customer Questions and answers :
Login to ask a question