20 gallon hexagonal tank

I am a glass hexagonal tank I am so lovely used unfortunately while I was doing my routine cleaning I developed a crack so because of this crack I was replaced was a better improved model but don't worry I do have silicone on me to cover the crack the only problem is the type of crack it is if you know the cracks for tanks you know what I'm talking about I need a whole panel replacement for this one side but other than that I am a perfectly good tank my light works and I'm basically okay and clean so if you're interested message me and we may be able to negotiate a price