No not that. Just thought I would share some experience from reefing for a dozen years. I am a self admitted poor water tester. Usually do so by the eye test. Been real socked in at work for months. Watched the 300g have a mini crash...eg 12 inch Hawkins receded to 3 inches, and watched my 30g separate frag system take a tumble where everything was getting burned up (SPS) from top down. Played a past hunch on the main tank and replaced the finnex titanium heater tubes and things quickly improved. Usually rotate new tubes every year regardless of how they physically present. On the frag tank, I discovered a eshopps frag rack magnet cracked open where the magnet was like peanut butter to the touch. I suspect that tank will rebound as well soon. Telltale on both tanks for metal leaching is problems with Montipora recession. Any way just thought I'd share.
