OT a person who wants to start over with the tank. It's been up and running for over a year. Nothing in it currently and hasn't changed water in months.
It has a sump.
Would a 70% water change be good enough?
Would I clean the sump out?
Add a new bag of carbon?
It will be set up as FO
due to his newness into the Marine tank ownership. He has never had any luck with it and asked for my assistance. I'm fairly schooled minus the questions above and what ever else is yet to come....which it's coming.....cause I have a dark cloud over my head.
Love ya! Tara