why do people say bio-wheels suck?

people say bio wheels (as well as Bioballs ) suck because they are too lazy to clean them- if you keep the free of detritus buildup by rinsing them well monthly or so (with SW)- they do not cause a problem
What are you cleaning once a month? The bio-Wheel? It says that the actual wheel does not need to be cleaned or replaced unless it is defective.
 
Top