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And my tank for about 8 months and notice that my crush coral is starting to turn green. The fish are fine. Just wondering what it is. I also notice little white spots on my rocks and glass. Please help
Crushed coral will develop many different colors on individual grains. Not sure why, but its not a problem. I siphon mine on every water change and this helps to clean it and mix it up, to help restore its white look.
Sorry, couldn't remember your second question!
The white specks look like small feather duster tubes, or tube worms. Also not a problem, actually a good thing to have developing.
Good luck with your tank!