Out of curiosity, is it common or a must to do any water changes on a 3800 gallon pond? I have a Tetra 3 filter, waterfall and UV sterilizer. 5 Fish anywhere from 5-8" and some plants.... How often if so??
can say that again. get some sturgeon in there2 Goldies, and 3 BF Koi.....minimally stocked to say the least...