Anodizing Using alternatives other than sulfuric acid

[eac67gt]

I tried last night ....but I did not see a bubbling action that I normally see when I had a test Alum rod as the Anode put into the solution (I did get bubbling when I put a different piece of alum in there... I'll have to retry). left if for a couple hours and got very mild results - the surface is slightly tinted but blotched

Was it the same alloy of aluminum? I think I saw somewhere depending on what alloy it is there may be different results or bad results. Something to think about.

Ed