Well, the biggest obstacle in converting the Eclipse was lighting. I don't believe that you can find a retro-fit kit that will fit the Eclipse Six. What I did was to buy a standard (as in the type that a normal 60W bulb fits in) double-fixture and I used two-part epoxy to glue it into the hood. Then I bought two 10W Coralife 50/50 bulbs. This gave me just enough light to keep some inverts. Email me if you would like and I will send you some pics of the lighting system.
For heating, I use one 50W heater. For filtration, I have about 10-11 lbs of
LR and about 15 lbs of
LS. I removed the bio-wheel because I had heard it would be a "nitrate factory." I tested my nitrates yesterday and they were between 2.5 and 5.0.
As far as my fish load, I began with some damsels, a few of them died but once the tank was cycled, I had no more trouble. The tank has never had algae problems interestingly enough (probably because I use bottled water). The tank may be slightly overstocked but the animals seem fine.
Any other questions, or if I think of anything else, I'll add it to this post. Good luck with your tank. Nano-reefs are so much fun!
Jim Willows