Quote:
Originally Posted by Enigma
I haven't changed my ROWAphos in longer than two months. Actually, it may be closer to four. 
I'll test what is coming out of the reactor. |
well you have a small tank too, but yeah id get that changed out. i usually change my gfo when film algae gets to growing on the glass.
test the reactor its the easiest way to see how good your gfo is, if its the same as display then change it out
