Thank you sooo much for your suggestions. The fairy liquid and scrub worked a little but the biological powder soak worked a lot :hiclp:
I don't have a dishwasher, and I have always been careful hand washing it as I was told when it was given to me it was quite old.
I re-read your replys while it was soaking, it was the outside of the bowl that had the stains, acid paste, I had wondered how they did it.
It was in a bowl with a huge scoop of powder when I re-read to use a little, so I quickly rinsed and dried. I am so happy it looks wonderful again
I am going to collect Uranium glass and can't afford to buy anything as big as my fishbowl, so it will go in the middle of my display.
Thanks again