[MiddletonMark]

Don, didn't Randy define `crash' here in a way that most people agree with? Is there a need to go to the dictionary, when it doesn't have anything to do with reefing?

I thought we solved this a page ago or more?

Originally posted by Randy Holmes-Farley
Instead of the inflammatory words like "crash", I think that perhaps this is a compromise statement that many of us could agree with:

"A sand bed will initially act as a sink for nutrients, both nitrogen and, to a smaller extent, phosphorus. That in itself is not a problem, and serves to keep the nutrient levels lower in the water column. After some period of time, the sand may begin to no longer be a sink for phosphorus. In some cases, about which we may debate the likelihood of it taking place in a typical reef aquarium, and under what conditions, the sand bed may even become a source of phosphorus. If the aquarium is unable to handle the phosphorus in other ways, and if it contains inhabitants susceptible to stress from elevated phosphorus (such as many calcifying corals and coralline algae), it may begin to decline in overall health."