What are the 'tri-colors'?
I have a frag under 192 watt of pc light and see new growth and mouths (polyp extensions) along the stem. I have the frag under high flow and it seems happy otherwise. On the top points, the tips are kind of electric green.
I've had some bright green algae before, but its under control in the rest of the tank, however the acro still keeps its bright green tips. Only the tips are green the body is orangey.
Since its growing I think its ok.