I had a chaeto growing thick in my fuge when i first purchased my set up. The guy had a 10,000k corallife bulb on it but the bulb/fixture was twice the length of the fuge so i wanted to replace it so coraline wouldn't grow on my pump and skimmer. I did the reaserch and saw on 3reef people were posting this link everywhere Melevsreef.com - Refugium Bulb so i ordered 2 of the 51000k bulbs. I put both of them in my fuge and cut my chaeto back to half so it would have room to grow. I was expecting it to take off based on the way people have been talking on here. It's been 2 months and now my chaeto is almost gone. It is very brittle, most of it is skattered on the bottom. I've tried putting a powerhead in the fuge to increase flow. That made it turn white really fast so i took that out. I have only had one light in it now for the past month. I tried turning the flow valve on the mini pump feeding water way down then cyano started growing so i turned it back up. Now I hooked up a new pump to see if maybe a little more flow coming over the edge would be better than when i had the karola nano powerhead in it. Would a maxijet 400 be to much flow for chaeto? I just don't get it, the posts on here make it seem like this is an easy thing. What can i be doing wrong.