Before the 14w light, I had a 4w CFL that was 2700k - no luck, so I upped to 14w warm-light. Now, I thought the warm was different from 2700k, because the old light looked very orange/yellow compared to the new ones. I used to think (from reading) that color temp wasn't as important as intensity. Now I'm thinking that a fuller spectrum light is more important (like a well balanced diet ) because my 20gal running with 15w of 10000k fluor runs great. My point being, getting different color bulbs is on the list of things to change.
Shortening and splitting the light cycle has been done. By siesta I decided about an hour and a half would be good. (I'm now going 10:00-2:00, 3:30-9:00)
I'm real curious about how much light is actually getting in the tank. I started with a black hood and no reflector, then used tinfoil because due to the size of the fixture/bulb one half of the tank was distinctly brighter. With tinfoil the difference in brightness is more subtle.
No ferts added at all now. My first wicked algae outbreak happened when I got a little bold after upping to 14w, and added 2ml of flourish. Algae showed up so I quit added any flourish, but the algae kept going... leads me to:
After a tank has a nasty algae outbreak, is it possible to tame it down? I did a scraping of the tank walls on both, did moderated water changes to get alot of the free-floating algae - but - both tanks just slowly got worse again.
Once algae has taken over, I'm guessing its almost better to admit defeat and tear down the tank and start over. (I've already started with one - I want to make sure I've got things under control before replanting.)
Thanks for the help so far... yeah 2 gal can be tough - but a tank running perfectly can be boring!