electric... i just started trying to get a planted tank going about 9 months ago and have finally had some success. of course i dont get the kind of growth that u see in some of those serious tanks but the plants do grow.
i havent had much success with anubias despite everything i read says that they are hardy, low light, and easy to grow. how about they just die or grow tons of algae and the leaves turn black. i know theres something i can do to fix it but im looking for simple.
I have two separate flourescent fixtures with the following bulbs.
http://www.drsfostersmith.com/product/prod_display.cfm?c=3578+3733+8066+4479&pcatid=4479
http://www.drsfostersmith.com/product/prod_display.cfm?c=3578+3733+8066+3816&pcatid=3816
i find that the plants under the power glow seem to grow the best. altho i think its still good to have two different lights.
im no expert but ive had success with some low light plants and no success with others. i had java fern for awhile and it didnt die, but it never grew. i havent had much success with anubias.
i have found that water wisteria and water sprite grow very well in my low tech setup. and I have a number for crypts that are growing well as well. the thing with crypts is that u have to be ready for alot of leaves melring away at first, then the plant starts to grow again.
my last thought also is that i think its harder to grow one plant successfully, especially if u have algae growing alot. u need alot of plants so that the plants can outcompete the algae for nutrient and thus not get covered in algae and look bad.
this is just my 2 cents on it and i think maybe just try a couple other low light plants and see which ones work right for u. also i dose liquid ferts once a week.