Calling 40b w/ 20 sump owners. Water change question

[Steadyreef42]

What does your water change schedule look like? How much and how often?

 

[visioned]

i have a 42g (ada 75p) with a 10g sump.



i change 10g every 3 weeks, filter socks once a week.

i have a low bioload; cleaner shramp, clown pair, yellow coris wrasse.

i feed a variety of foods including NLS pellet, mysis, and Rod's food.