So with the canister filter on it, it definitely makes it harder to maintain lower nutrient levels and doesnt give much room for extra equipment. However, it is very doable especially for soft corals which not only are easy to take care of but can thrive in dirty nutrient dense water. Which for someone like you who is new, can be very easy and rewarding.
What is your budget for the light?
I'm new to this. When you say only a canister filter, what would be better? A skimmer? A sump?