Need a new lamp for my fuge.

[MizTanks]

Would 13w be enough for my 3.3g fuge? I'm now using a 24w and it's causing major cyno. I kept the light off for 3 days and the cyno receded big time. Turned it back on and a couple hours later the cyno bloomed again. So I think a little less light is called for.

[MizTanks]

Yup only in the fuge. Been like this since I made a big Oops with some salt and then changed the light from a 13w to the 24w. Part of me feels I should just tear it down and start fresh with it.
Got tons of sponge growing around the intake area. I mean it's covered in the stuff!!http://img.tapatalk.com/6c55d094-78c3-64ad.jpg

[MizTanks]

Well I'm already running an mj600. I'm thinking a 900 would be a bit to much. No? The fuge is only 3.3g's.