Hi there. I've set up a refugium. Was looking for a nice macro algea. Kind of looking for my refugium to be a second display tank. Want an attractive algae that won't over run my display tank if it accidentally gets through the return pump . Thanks

Hi. That is a great idea to use the refugium as a macroalgae display tank :)

We have a section especially for macroalgae which are just perfect to place in the display tank which you can find HERE

Especially red macroalgae species like Gracilaria & Halymenia will fit well for your purpose and add a great colour too to enjoy.

If you have the space in your refugium I would recommend some caulerpa species which we have not added to this section, as they might overgrow in a main display tank easily rockwork and corals. But I guess you won't have this in the refugium, or?

The Caulerpa TaxifoliaCaulerpa Prolifera and Caulerpa Racemosa are great for this.
The Ochtodes and Red Turf Macroalgae I would place away from the return pump, as they will attach themselves and floating parts might not be the best idea for the return pump :)

If you have any further questions let me know.

I hope you will find some nice macroalgae to kickstart your new project.

All the best and please stay safe and well.


Livealgae UK

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