Yea I may just leave the light issue for now, too much expenses on this tank at the moment and the lights are expensive. As for the CO2 things, I know nothing of it except that it helps plant growth. I think Ill just go with the plants I mentioned before, unless theyre not suitable for my tank? By the way, will pennywort grow well in this tank and eventually cover some part of the water's surface with its leaves? If so, would I be able to have an anubias in the shade of the leaves? Yes, I was trying to create a biotope for the Betta as a school project, but after the project is graded, I just want to use it as a tropical tank, no biotope sort of things with plants and fish that you find in the same area. The blue light is actually blue, like the whole tube looks blue and the tank and the water looks blue when its on. The white light is just the regular colour? Not sure how to describe it, not too good with plants or lights. Yup I used the soil substrate like we discussed, water was cloudy at first but cleared up nicely after a water change. The soil substrate is like an inch of barely washed sandy loam, covered by another inch of completely (well to the best of my abilities) sandy loam, which looks basically just like sand. Im going to buy the female fighters tomorrow and introduce them into the tank with the usual method (float the bag, add some water, net fish out) and then monitor them in case they decide to kill each other. The tank is going to be graded as a biotope, so its going to have to look as much as a rice field as possible.Yea, they let us choose whatever we wanted to do for a year-long project and I chose to research and recreate the betta habitat of rice paddy fields. Its all going well for now, apart from the green algae on the walls and substrate. If the ramshorn snail can't handle it, Im going to get a bristlenose pleco and a piece of driftwood. Bring in the heavy artillery! Ill probably post a picture tomorrow with the fish in the tank.