What's the Best Contents for a Refugium?

[viperfish]

Originally Posted by daniella3d

I would go with micro algae instead of cheato as cheato I have read takes a lot of calcium from the water.

Please share the source where you read this. There are some calcareous forms of macro algae such as Halimeda, Rhipocephalus and Penicillus but chaetomorpha is not in this group.

Originally Posted by daniella3d

It will remove a lot more nitrates from the water because it is growing so much faster than cheato. A bit of cheato is ok for giving a refuge to pods but the micro-algae like the caulerpa is much more useful.

I think this is a matter of opinion and not fact. They are both excellent at exporting nutrients, they just behave differently and therefore one may outgrow the other depending on the type of refugium setup.