Couple questions...?

[Stege_saurus]

Is GHA (green hair algae) ok in a refugium? I can't get chaeto to grow, I've tried a few times with no luck, but GHA has started growing only in the refugium. I don't know if it will export nutrients or not...

If the GHA is not good for the refugium, I have a long spined urchin. Would it be okay for it to go in the refugium to eat and manage the GHA, or should I just remove it all and start over?

I haven't posted in awhile and have kind of forgotten a few things due to some other events happening in life. Good to be back.

Also, Im a bit confused, I have 3 BTAs (bubble tip anemones) that grow and thrive in my tank, but my corals don't ever seem to grow and they've been in longer than the BTAs...any possible explanation?

 

[Reefer40b]

No issue with it, let it grow and pull it out, thats some export. better than being in the display.