PLease help me with Water Addatives

what addative should i use that doesnt cause tubing to get cloudy after a while? Im using tygon, deionized water, water wetter (5%), deep blue visible dye. after 4 months, the tubes are pretty cloudy. Ive just ordered Zerex Super Coolant, will this cloud up my tubing after a while, and since im using visible blue dye, will the zerex give the water a red tinge? Should i put a little antifreeze in the mixture, or can i just use deionized water, 5% zerex, and a few drops of dye?

or should i use deionized water and blue antifreeze (pentosin) ? i want the water to be blue. will this mixture cloud up the tubing and will it also protect from corrosion, bacteria growth?