I've got one 7" RES, who gets fed in his tank, in a 75 Gal tank (with probably 70 Gal of water). The filter is a Fluval 404, with media: pre-filter, carbon, and 2 baskets of biomedia.
Everything has been up and running for two weeks now, and I haven't rinsed any of the media or done any partial water changes, and the water is still crystal clean.
Can I get away with rinsing about once a month (or even a bit more frequently) without any partial water changes, and just do 100% water changes as needed? Or should I rinse more often and/or do partial water changes too? Anyone with a similar set up, I'd love to hear what you do




