Who is Using a Refugium for Nutrient Control?

[Snaz]

While a heck of lot smaller my 12 gallon has been running a chaeto refugium since May. I think Chaeto is the common macro to grow as there is little or no chance it will "go sexual" and foul up the water with spores.

That said often chaeto refugiums are often on a reverse light cycle so as to keep up pH during the night when regular lights are off and CO2 levels rise. Now I am reading that it might make more sense to leave the fuge lights on 24/7 as you get a better nutrient export.

Have I noticed my 12 gallons improve since the chaeto fuge? Hmm maybe, it sure grows a lot of chaeto!