<a href=showthread.php?s=&postid=9224174#post9224174 target=_blank>Originally posted</a> by shannahan14
I guess i should of also added you will only really need them if you have the demand for them. If you have a small need then regular water changes should keep the levels up where they need to be. You can wait and get a routine going to determine if you need them.
Chris