could somebody pkease tell me what this is on my aragonite substrate. the tank is 10 days old and this appeared in the last 2 days and has me somewhat freaked [ya dont get this kind of thing in fresh water]
It is a sign of excess nutrients in the water... very common in new tanks... I wouldn't try to fix it yet... wait it out for now... if it gets real bad (thick and chunky) try to siphon some out
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