So i was checking some coolants because i am doing a custom loop . The problem is that im using a copper cpu block and a aluminum radiator . I was afraid of galvanic corrosion so i checked some coolant that have anti corrosion . I found thermaltakes c1000 coolant but it is to expensive in my country. 43 euros per 1L. Is there any alternatives to this coolant with the same anti corrosion effects ?