It is possible, but it usually takes a bit of planning (typically for dosing and nutrient export, but, in your case, sand maintenance too). We’ve even had TOTM’s that run no water change systems (as mentioned in a post above, though, it’s probably a good idea to have some extra salt/water around as a just in case - a lot of people do a “no planned water changes system”).
Some relevant threads:
Here's a crazy 1. I see these nano reefs with a few LPS and soft coral in lobbies around, with a HOB skimmer and nothing else, clearly neglected, power heads disintegrating and falling apart. Yet the coral survives. Brown, usually, not many vibrant colors. But the clown fish are fat and...
www.reef2reef.com
R2R Username: @Reefer_punk Build Thread: Reefer_punk's new build thread Introduction: Hi to all of you, Reef2Reefers! First of all, I am unbelievably honored to have my tank picked as Reef of the Month! It is humbling to be selected and...
www.reef2reef.com
Info on the Reef Moonshiner’s method:
Reef Moonshiner's
www.reefmoonshiners.com