it looks a bit like the glass is stained? if it is i don't think this tank is right for me, i would prefer a cleaner tank. also how long have you had it for?
Not stained but could use some cleaning with vinegar to get the residue off it. I just didn't get around to it. I've had it for a little over a year IIRC. It's been unused for about 4 months now.
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