So I am planning on converting a 29 gallon tank to saltwater. I want it to be a reef tank. I have full customization available as I will be building my own stand. I was thinking about building a 20 gallon sump. Will this be worth my time and money? First compartment would be intake through some socks, then a second compartment with skimmer, then live rock with macro algae attached (heater will be in here), then small compartment for optional carbon or purigen, then bubble trap filled with sponges (mechanical filtration), leading to return pump. Thoughts?