Just picked up a drilled out 155. Drilled om two sides with overflow things lol, has a white pipe with a red switch thing on each side as well as a smaller black tubing on each side...... Now I'm going ton make a sump for this tank, it's going to be freshwater..... Now my questions are basically how would be the best/cost efficient way of doing this. Should i run two sumps underneath it? Should I run one? What size pumps should I use, do I make a drip tray for carbon? Completely new to using sumps so some direction would be nice! Thank you