Roller mat or Refugium

Shibaken3 · Oct 1, 2026

Started putting together a new build and realized that if I install a roller mat, I won’t have enough space left for a refugium.
Which would you guys choose for a reef tank: roller mat or refugium? Which one do you think is more beneficial?

I could use filter socks instead, but realistically I know I won’t keep up with cleaning/changing them, so that’s not really an option for me.
Would love to hear what you guys think and why.

exnisstech · Oct 1, 2026

They serve different purposes. I've run both and if I had to choose only one I would choose roller. A Chaeto fuge for me never help with nutrients but are a great place for pods to reproduce but I have pods in all of my tanks and have no fuge other than a cryptic fuge on one tank.
Socks and a fuge is a good option IMO. You could use mesh socks which are easy to clean. If socks overflow once in a while it doesn't hurt a thing unless there's something wrong in the tank. I've run tanks with no filtration, skimmer or fuge.

get-salty · Oct 1, 2026

How big is the sump?

A roller mat, sock, or filter floss are for filtration purposes - Def need it imo

A refuge is a chamber where you grow macro algae to export nutrients and a place for pods multiply.

You dont need a refugium, but you need some sort of filtration system to filter out detritus or any bigger particles that get sucked down into the drain.

Servos · Oct 1, 2026

Essentially what exnisstech stated: Each serves a different purpose, but if I could choose only one it would be a rollermat.
Differing though, I'll never go back to socks. Based on your comments on upkeep, I would avoid as well.

As for if a fuge is beneficial, I think it depends on the overall setup. If you have need for a large pod population, they can be very helpful. For other purposes, other options exist (ie nutrient export can be done by ATS, more water changes).