Vinegar does a pretty good job and won't later poison anything.
It wasn't meant in a rude fashion. I never said to get rid of the old tank. It would make a great quarantine tank. Or breeder. Just not a show tank.But that tank will never have the clarity of new glass. I noticed that when I got my new 20H's last year. And if Petco wasn't having the $1/gallon sale or it was a more expensive tank I wouldn't have mentioned it. I've got 3 20L that have hard water stains. I don't bother cleaning them because i don't want to waste the time since the tanks are still serving their purpose. I'd rather spend that time with my son.Why would someone go spend $10.00 on a new tank when they could put a little elbow grease into an old one?
Some people don't have money to throw around, so I find suggestions like that rude.
OP, when I cleaned my hardwater, I just used warm water and a clean rag. It eventually comes off, but you're probably better off with vinegar. Good luck!
Now that is impossible. How could you ever have too many tanks?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.
That's not a too many tank problem that's a too little space problem. Solution? Get more tanks. And more space.Limited space.
The heated up is a good idea. Heat cuts well.