George,
No, my urchin tends to gravitate towards greenery... ie. the macro algaes that I want to keep and the seagrasses as well. Unfortuntately, it does not pay attention to the hair algae that I'm battling right now.
I don't have much in the way of coraline in my seahorse tank. Being free of any stony corals, I don't worry much about high levels of calcium. I do regular water changes (have to...ponies are pigs) and am sure that this process keeps the levels well within the needs for snail, fish and other critters needs. My shrimp molt often so I have to assume that calcium, ph, iodine etc. are all within range.. I will admit, I'm one of those "old salts" that rarely does water tests. Only when I see something that "just aint right"
Dave
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"Fins to the left...Fins to the Right, I'm going home to play with my reef tonight..."
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Experience in aquaria, 35 years. Experience in marine, 20+ years. Experience in Reef Keeping, 6 years. Always a newbie! | 
