Kharn is this your first go around with macro?
Fast growing is a sign of it pulling up alot of waste. Be cautious this stuff can go sexual . When this happeneds the macro will release all its internals into the water. Most will note the water turning a milky shade of white. This usually stimulates the other macros to do the same. We call this a macro "crash".
This is not the first time I have used macro algae before however its the first time I have put it into a display tank before (being in a sump before) in all honesty I just ASSUMED that algae grew faster then coral like softies (hence the assumption of the algae eventually growing over and consuming the coral?).
I had read about it going sexual but since I never had it happen in the past I have never been that worried about it and what I did in the past was a pritty...budget kind of thing to do (basically if that worked ANYTHING would).
In the past (you should remember) I had an AquaClear110 HOB DIY Refugium where I filled it with macro algae (and some live rock beneath it). During that time I had 0 problems with it (beyond clogging the 110Hob to the point where it was 1-2mm from overflowing hence why I took it apart).
As far as I am concerned it only goes sexual if the lighting is rapidly changing ? (like if you do not stick to the 12hr light cycle for it ?).
I would of prefered stuff that didn't go 'sexual' but I am not an algae whizz and cannot tell all that well between the different types out there specially the ones that do go sexual (or are notorious for going sexual) and the ones that people know for sure that will not go sexual.
Again this is just a test really....as I am looking at increasing the overall color of the tanks where there are lights whilst also not having to spend more money on equipment (upgrading the lights).
If it works with my current lights AWESOME, great, its what I wanted if not, then its got to go....so there is a lot of trial and error.
One thing I have noticed and cannot understand are Acans....I have lost 2 so far (by lost I mean they were dying and so I gave them to a mate) here is the weird part....
STAND B - Top Tank - Divided into 2 compartments (then one of those compartments is divided via eggcrate (Minnie & Maximus) in the half (which is halved again by eggcrate) where Maximus & Minnie reside were 2 Acan clusters, the one on Minnies side is THRIVING all puffy and bright colored (thank god being its the nicer of the 2) the one on Maximus side was dying hardcore....each day I noticed an acan polyp missing and the bright white bone/cartilage underneath...in the other half of the tank (where my G.T.'s are) there are 4 Acan clusters ALLL thriving like madness (going to have to remove some to let them grow...).
Same stand, Same tank, 5 Acans THRIVING bright colors, all fat and puffy, 1 Acan just literally rolled over and just about died (mate reviving it I mean he got it for free xD) There were 2 other Acan clusters that also succumbed...yet they were in tanks were on the other side of the divider was another Acan cluster...THRIVING.
Confusing...
But this is what I do, I don't make exceptions based on the corals needs, its the coral that must make exceptions based on my stomatopods needs and if they cannot cope, they just got to go....
having said this I have had great success with Acans/Morphs but for some reason NOT zoanthids....none of my Zoa's are opening (besides 1 which isn't exactly the nicest Zoa either (brown with a little green).
RANTING!!!!!!!!!! lol:crazy1:
so I'm back 
...claws folded back in and he slowly began to sink back into his burrow, the clownfish didn't notice any of this happening and so basically went rite on top of Morgoth and thought to have a little rest...sitting on the top of Morgoth until I just gave in and removed the fish.
