Sorry Brian if that’s what you think I would not recommend you go zeovit.
Craig was correct in that if I respond to Laytons arguments, it will never end, same as every other thread I ever started involving filtration or water quality.
So I’m just going to state that what typically happens in a tank, NOT IN A WILD REEF which is a whole different ball game.
The tank will typically be running at a much higher level of nutrients than a wild reef. Perhaps a Po4 value of 3.0, or similar. As a result, there will be brown sps, and perhaps algae. The sps are chocolate brown and have adapted to the high nutrient level over a long time, perhaps months or more.
So – The reefkeeper decides to do something about this and reduce phosphate. Typically using a phosphate resin, zeovit, or vodka. But he gets carried away and overdoes it, reducing Po4 in a very short time to levels below 0.003. Below levels that occur in NSW and are required by the sps to sustain life. The sps need Po4 for survival and there is now not enough to sustain them. On top of that they have been adapted over a period to much higher Po4 levels than occur in a wild reef.
The result is they lose tissue, and perhaps die. It has nothing to do with iron or whatever Laytons latest theory of the month is.
Now I know Layton will come back and argue about this, but I cannot be bothered. I’ve just posted this so those who wish can have the information.