You shouldn't really ever need to do a 98% water change...unless you spill a bottle of bleach in the tank somehow...
i just read the last page of this thread and i'd agree with jbarb, get more bio-ceramic rings/etc. Clear water is a sign of sufficient biological media.
i just read the last page of this thread and i'd agree with jbarb, get more bio-ceramic rings/etc. Clear water is a sign of sufficient biological media.