I understand it wasn't intended to be rude, but you didn't offer up what you just said in your original post. Had you said that, it would have been a different story.
I find that if people (including myself) don't make the best of every purchase, you wind up with way too many tanks.
My take is this doesn't have to be a break the bank hobby.
Now that is impossible. How could you ever have too many tanks?
And has been said. White vinegar. Great for cleaning coffee makers. Try heating it up a little. in fact we even use it warm on our press rollers to get off the buildup and to neutralize the rollers.