All copper - aluminum isn't as good - DO NOT MIX

I wouldn't bother yer backside with Feser, Potential to crack acrylic, heavily clog your blocks and is just nasty end of.

If you want colour, get coloured hosing and using distilled water and a silver kill koil. I've got PC Pure clear running in my rig atm until I can be bothered changing... EC6 clear is also very good.

~Bex