Ok, so I have searched the internet for a way to clean these line stains out of the inside of my aquarium. I have EXTREMELY hard water here and I left town for about a month and had someone look after the aquarium and some of the water evaporated and it has left these nasty wavy lines. They look like radio wave lines on the inside of the aquarium! I don't know how to get rid of them I have tried EVERYTHING, lemon juice, vinegar, even household cleaners!! I hope it didn't warp the glass or something? They don't look like just normal hard water stains. I have attached a picture. PLEASE HELP!!!
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