Yeah with saltwater. Would highly suggest weekly and at least 20%
You might do better with a couple of smaller water changes than one large one.
but with FOWLR, treat it just like you do with your fw/bw tanks.
I first got this idea from watching one of new York steelo's vids and I believe he had gone 80 yes 80 days without a change and I'm sure some of you will be aware of how nice his tanks are.
I have a 120g and want a FOWLR with 40g sump/refugium for chaeto and skimmer.What is your tank size?
Terrance said:His personal website: New York Steelo | Aquarium Products and Educationional Information
An example of his video on youtube:
Dang I can't get rid of the video posting directly into the post. Well if you go to youtube, search "aquafuge review" and one of his video should pop up. Then you can find his channel.