I have a 75 gallon with 125 pounds live rock 8 pounds crushed coral. i have a wet dry being used as a sump. i have a internal overflow drilled in the tank. both of the bulk heads are to 3/4 the return pump is a rio 5oo that returns to the tank with 4 feet of 3/4 flex. the sumo line is a 1 inch durso pipe changed into 3/4 3 feet to flex to the sump is this too small should i change the bulk head and redo everything or should this be good. i am going to put two korilla 4 s in there as well... Advice please.