Blah coral colours... any tips?

[doch]

Little update for those interested. Here's what I did:

1. Pulled the Bio balls out of my filter
2. Double checked my water with Elos test kits... results came in comparable to the Hagen kits
3. Added a GFO reactor
4. Picked up a Hanna Phosphate tester (down to 0.02)
5. Picked up several of the Zeo supplements

Essentially this all went down within the last 2 weeks, and man have I noticed a BIG difference. Almost everything has a new splash of colour to it already. Unfortunately there are a few that still look pretty blah, but I'm confident that they will some around. Not sure if it was one of those actions, or the combination of them all, but either way... I'm very happy!! I've also noticed an increase in growht... some of the frags that have never shown any signs of growth have new (and colourful) tips!! All is well and good.... thanks for the tips boys and girls... MUCH appreciated!