test for nitrates, then do you water change based on nitrates levels. really thats the only way to know how much you need to charge.
it could be your over changing or it could be your under changing.
after you do the testing for a couple weeks you can guess the nitrate accumulation rate, then make your schedule accordingly i would still recommend testing monthly tho
Excellent!! I agree 1000%!! You can then explain to 'Pops' that your objective is to maintain a nitrate level of less than say 20ppm. The only way to do that is thru W/C's. The difference is you'll be able to justify your water use a bit better. "T"
you need to do some research buddy! bio filtration does NOTHING to reduce nitrates, only ammonia and nitrites. only way to get rid of nitrates is through regular water changes

