Looking for low nutrient plants for refugium

[andrewttw]

Hi all, does anyone have any low nutrient plants to give?

I am currently trying out caulerpa in my refugium for about 5 months now but it doesn't seem to grow very well. Previously tried chaeto but the whole lot just turned white after a month. Tested my phosphate which is on the lowest band on the test kit but nitrates about 50ppm. Don't know if caulerpa not able to grow well in these low phosphate conditions.

Currently the live rocks in my refugium are growing all sorts of green stuff on it so it's just the caulerpa that doesn't do well

[Clement Chen]

What lights u using for ur refugium. My chaeto grows even with low nutrients. Could be also lack of iron

[sherman]

You have enough lite in your refgium?

[andrewttw]

I got 1 par38 12x3 36W over the area.

[andrewttw]

Just started dosing iron. See how that goes.

So anyone with plant suggestions and alternatives?

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[Harlequinmania]

Chaeto is still the best in refugium since it grow fast and dont turn sexual.