Hello was looking for people who have experience with vector m2 and the neptune cor20 return pumps. I am in the process of setting up 120g cichlid tank with a 40 gallon sump. this will be the first time using a sump and i am stuck between which return pump to buy. if anyone has some input on the good/bad that would be great. the head pressure should be around 8ft. i am using a syngery reef 16inch ghost over flow . Thanks !