20H nano-reef, twice weekly or whenever GHA shows up
10g figure-8 puffer tank, once monthly
10g guppy tank, I just pull java moss and water sprite out, water quality is amazing. If nitrates ever show up, I'll start doing more than top-offs... says alot for high lighting and lower plants!
18gal redfin pickerel rubbermaid tank: 10% water change after minnow feeding, once a week.
I do 2 tanks everynight usually at 10:30 at night after work. I have alot of tanks to take care of so.... and I do two water changes on each. Sometimes I will take a break for a week to try and not burn myself out ya know? But my tanks never go above 12ppm of nitrate.
240, 180, 150, 125, 55, 40, 30, 2-29's, and a couple 10's but I have many other tanks just not filled yet lol.