This filter media is absolutely amazing! It works better because my fish tank looks great. before I add in the cube, the water was always a little cloudy, after I add those in, just laid them in the sump, the water cleared and my tank is crystal clear, Personally I think it well made, great for bacteria grow, it doesn’t restrict water flow and so far so good. highly recommend it. water changes(you still need to do water changes, at least once every two weeks)
put this into my fish tank clears the water
Within 2 days my fish tank was Crystal clear. Amazed.
It does what it has been done for. It filters very good and for that you may not need to change so many times your water. Also is because I got a pump moving the water constantly what gives a better quality water
Her tank has never been cleaner