Good small filter that shows you what it traps
January 29, 2015
This filter cleans as it releases air bubbles into the warer I haven't had problems with suction cups or clousing and think this does a better job cleaning than other small filters I have used. I have it attached to a small Tetra pump because I've replaced my Tetra filter with the Penn Plax disposable system
Wish I could replace the filter and charcoal rather than throwing the whole unit out.