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I have live rock in my new aquarium and it is activating my sand. I noticed that there is an enormous amount of these small white micro-organisms in the tank now. They are tiny (the size of a pin point) and are everywhere(you have to look closely to notice them, but the sand is covered with them). Not to be crude, but they look like tiny sperm with short tails.

Are these healthy and normal. My instinct is yes, but I just wanted to be sure...

I do have hermits, red crabs and snails in the tank, but no fish as it is only a month old.

Thanks for your help and guidance on this.

Nothing comes to my mind there, unless they are maybe copepods, which are very beneficial.

You can look through some of the ID's with pics here to maybe see if that's what you have. If the link doesn't take you right there, use info links-->hitchikers-->shrimp or worms etc.

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Critical Fertilator: The Micromanager of Macronutrients

Thanks Matty! That's a great site. You rock.