The only general cons to refugiums growing macroalage that I can think of are that they take up a bit of space and require additional lighting... not a big deal for most setups.
However the type of algae that you choose to grow could have some negative effects on your tank. While caulerpa grows quickly and is wonderful for exporting nutrients it is known to yellow the water, release chemicals that stunt the growth of stony corals and potential go sexual and nuke everything. Chaetomorphia is relatively safe but like Caulerpa you don't want any getting into your display tank because once it takes hold on your rocks it is very difficult to get rid of. Gracillaria is my favorite... except that it doesn't grow worth a damn for me. None of them do anymore. I think the GFO I'm using works a little too well and that I need to cut back.
|