Wow, Louis thanks for the complements. That means a lot coming from someone who has been able to put together a Reef Central TOTM.
It is really amazing how much the fuge changes from day to day. Most of the algae in it are calcareous species, which grow fast and are rather short lived. It seems like as soon as one hits maturity, it begins to senesce but not before sending up two or three more to replace it. The Halimeda alone have probably added a quarter inch of material to the sand bed. I think mine has been so successful for several reasons; a moderately heavy bioload, heavy illumination (110 watts of CF over a 15 gallon tank), huge inputs of kalkwasser to maintain the calcium/alkalinity levels for the algae, and I let senescing plant material decompose in the fuge. That last one is probably not something many would feel comfortable doing, but it has turned the sandbed from sand into a “soil†very similar to what is found in the shallow water algae beds around here.
With the exception of a Botryocladia species and Caluerpa serrulata, all the algae were either grown from fragments I collected or were volunteers from the display. I all it’s about 15 species of algae and one vascular plant (Halodule wrightii).
Jay