I went down to bunnings and got a fish tub that the manufacture said was food grade. I've got some neons testing their claim so far they appear ok though. They seem to be the same one as those ones at mitre10mega except $1.00 cheaper haha.
This is very handy info I'll keep it in mind for when I hunt for some more, I found one that has dividers which would be pretty handy for fighters so I'll see what they are made out of.
Sweet, I'll check out the warehouse as well, I'll see if the have any see through ones. Neons arent too fun to look at with a birds eye view.