To be honest I'm not surprised in the least.
I run a 1-2" Caribsea Hawaiian Black sand bed in my tank.
Anyone who's ever run it has probably at some point (hopefully only once) has heard the heartbreaking SCREEEEEEEEE of a particle of ferrous sand between their mag cleaner and glass.
The question is, do I care? I do occasionally have some zoas/palys (the tank is 95%+ zoa/paly) die for inexplicable reasons but other than that my tank seems fairly stable. I doubt there's anything to be done to pull iron out as I imagine the contents of the sand bed will just continue to slowly oxidize but I'm curious.
I run a 1-2" Caribsea Hawaiian Black sand bed in my tank.
Anyone who's ever run it has probably at some point (hopefully only once) has heard the heartbreaking SCREEEEEEEEE of a particle of ferrous sand between their mag cleaner and glass.
The question is, do I care? I do occasionally have some zoas/palys (the tank is 95%+ zoa/paly) die for inexplicable reasons but other than that my tank seems fairly stable. I doubt there's anything to be done to pull iron out as I imagine the contents of the sand bed will just continue to slowly oxidize but I'm curious.