[Delwin]

I am not sure what is the highest wattage over your side, but i am very sure that there are some much more higher wattage then this. If you cant find those T5 set with individual reflextors, then you can go for PL, they will give you the same effect as T5(but gives off more heat then T5).

Repot them with sand and peat, ratio 1:1. If you cant find lapis sand, then perlite will also do the job. While repotting, you can splite the cephs too, i am sure there are atleast more then 5 growing points from the look of the plant.