thank you all for your kind comments,
ok here are some more updates, finally after so many days finished the chiller and rest of the plumbing.
sheetrock was cutout then bulks were installed. ball and gates valves were used throughtout the plumbing for fine tuning.
intake and outlet for chiller with bulks
here's the Fish Room along with 100gal of plumbing
refugium is the last set of plumbing needed to be done after that i'm a happy camper