Question about tt Pacific RL360 - 184154

hello ;) it's full alu ? or alu and copper ? i heard that you can't mix the materials because of electrolysis which degrades the waterblock ? I've heard that you shouldn't mix materials because of electrolysis which degrades the waterblock? my loop will be full tt pacific, I wanted to use a slightly translucent liquid but in the comments I'm not sure if it's a good idea to use a liquid that's a little translucent or not, but in the comments, a lot of people have problems with the liquid clogging up the watercolling or getting all ugly! I'm going to use a transparent liquid until I can test the other one on a mini test system. I'm not sure what kind of liquid you'd suggest, but I need the best quality, and I don't want to get bacteria or corrosion! ^^ Thank you :)