1. The bulb is some 60watt bulb that I had in my desk lamp. Nothing special. I don't know anything else about it.
2. I don't put anything in the water except for water conditioner.
3. I do try to vaccum around the plants but I try to leave the roots alone. I should add that I had not noticed growth on the Wisteria in about a week or so.
4. Some of the leaves on the Anubias have little brown spots. Others don't. I think it was getting too much light, so I moved it to the other end of the tank.