Flame moss is kind difficult to grow in bigger tanks unless you have high light with co2. It might do ok in my application, since the lighting will be an inch or two away from the light. Most likely I'm going to tie or glue it to DW.
Luckily when I found my 2.5 it had its glass lid and dividers still in there. I want to go with a t8 also, but upon searching I can't find one.
My next option would be led.
I have flame moss in a low tech tank with good light but it's not high light. well it might be more then most of you guys have because I did set this tank up for plants. I love this moss. I have a few other kinds of moss too.
I have had this moss for a long time and I have to trim it back A lot and retie it every 4 months. Mine goes like a weed without CO2. I use to have it with CO2 and I did not see a difference in growth. The tank is on the cooler side with good water flow. 75F is the hottest my tank gets. I do add ferts to my water to feed my plants too.
In fact I am about to cut this moss back in a few days.
Most moss likes cooler temps and good water movement making it not the best for a betta tank. I do have flame moss in a zip lock bag with water sitting in a window and its growing well in the bag you just need to flip the bag every day or so. I also have snails in the bag to give off ammonia and that helps feed the plant.
100Gal Cichlid tank, 80 Gal planted Community, 20Gal planted Betta, 7gal planted Betta, 20gal goldfish grow out. Yeah I like fish.