I had bought this old aquarium from my native fish keeping society. It's a 120ltrs aquarium of measurements 1meter x 30cm x 40cm
The back glass panel of the aquarium seems very cloudy, as if it's stained. My suspicions is on mineral deposits since where I come from we have very hardy calcium filled water.
How can I go about clearing this? Could it be something else other than mineral deposits?
I've tried paint thinner as well and it had made no effect.
I've also tried alcohol and it has no effect what so ever.
I've tried scrubbing with steel wool, rough sponges..etc and nothing.
The white vinegar method does not work for me.
When applying the vinegar the whiteness sort of disappears but it quickly returns. I've left tons of white vinegar soaked paper towels just on the glass for a night covered with a towel. As soon I have removed them the next day it didn't take long, maybe 15mins(?), and the cloudiness returned again.
I've done this step several times but it doesn't look like it's making a real difference.
It's a real mystery to me and I'd like to find out if some one else have experienced something similar or any possible solution to this nuisance.