The keepers of the 72 gallon tank have made significant progress on the tank. The red algae is ultimately gone, and it looks really good. The phosphorous reactor has done an incredible job of improving the tank. Also, the keepers have performed several water changes, at least one a week. Most importantly, the propagated corals are doing great. The two Xenia were propagated with two different techniques. One was propagated with glue, and the other Xenia was pinned down with a cement plug, in which the Xenia attached itself. The Nephthea was propagated naturally, as it randomly attached itself to a plug. Overall the tank is doing much better than ever before, and the propagated corals are looking healthy.