miracle mud or dud?

[tcunningham]

LFS has suggested using miracle mud as base of refugium on the basis that it is effective and low maintenance. Advice is that it must be 50% replaced every 12 months. Any comments on effectiveness and practicalities?

 

[fireman676]

If you do a search on this you will find several long threads debating it. My personal experience is: I have been using it for about 8 yrs and it seems to work. Since I dont have 2 identical tanks set up, one with MM and one without, I cant say it is better than any other method. The bottom line is my tank has done well with no apparent negative effects. Also I dont replace 50% every year. My average is about every 2 yrs or so.