I’m planning on setting up a Rubbermaid 150g stock tank using at least 2 sponge filters for filtration and a heater. For a light I have a 150w metal halide pendant leftover from a reef tank that I no longer have. Want to have a couple floaty plants and about 5 Ranchu I want to grow out. I was thinking the light would be plenty for the plants to grow and to color up the fish or do you think it would be overkill. This would be my first stock tank setup but a couple years ago I kept a couple Ranchu in a 75g tank with regular fluorescent lights on it. Wanting to get opinions before I make purchases to set this up.