On Thu, 29 Jun 2006 02:28:43 GMT, "Bryan"
wrote:

I have a green algae question.

I have a fairly new reef tank. I got the normal brown diatoms that lasted
just less than a week then it all turned green.... and the green grew fast.


This is common in new tanks, first they go brown, then a bit green,
then they should improve if you are doing things right. The initial
tapwater fill may not be an issue as that's a one off source of
nutrients, main thing is that you are using RO now. The post though
doesn't give the important details about the setup though which a

1. Is there an effective skimmer set up, things grow partly on organic
nutrients that you can't measure with a test kit, and skimming helps
here.

2. Is all your topup kalkwasser (calcium hydroxide) and what is the
evapouration rate from the tank - ie are you getting much of this in?

Anyone have experience with a UV Sterilizer?

You don't need a UV sterilizer, and it may be harmful in that it will
kill small creatures in your water that the corals like to eat. You
are trying to replicate a natural ecosystem, this is a reef not a fish
only setup!

Steve