The more I read up on SPS keeping, the more I'm confused.
Why is it that higher kH levels (9-11) are recommended for tanks with higher nutrient levels, and lower kH (7-8) is recommended for low-nutrient tanks?
And why is it that we strive for low-nutrient environment for SPS health, and yet recommend heaving feeding to colour them up?
Seems contradictory to me.
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