Just wanted to get a couple opinions.  I have (had) a ton of cheato algae in my fuge.  Over the past month or so, it has dwindled down significantly.  Only two things I think could be the possible culprit, but don't know.  1) Lighting.  I only have a regular household (though I thought it was a 6500k bulb) bulb over it.  Do I need something different?  2) I have two urchins I put in there awhile back to take care of some cyano and other nuisance algae.  Do these eat macro?  I ask, because I've NEVER seen them eating or even near the stuff.  I have only seen them staying on the rock in the fuge.  Maybe both are the issue??