Agree. There's kind of 3 levels of limescale battle (and probably more, I'm just thinking out loud). First is the approach while the tank is running where you try non-scratchy scrubbies, pads and blades (be aware that blades can scratch glass, so they should be used carefully and slowly in my opinion.)
Second level of approach is with an empty tank where you can perhaps rest it on one side at a time and let vinegar just sit pooled over the limescaled area overnight or whatever and then try scrubbing it after that as in approach 1. Another thing I sometimes do is alternate fresh lime or lemon skin with razor blade slides, this being conducive to needing to make mixed drinks prior of course.
Finally, another thing that always needs to be stated I think is that as you get toward the smaller tank end of the scale one should always think about whether the problem might be just solved with a new tank. Often as hobbyists we get rather attached to our tank for no good reason. Tanks themselves are often not among the most expensive gear items and for smaller ones it can be good to simply think of them as periodically interchangeable, right? Well, depends on lots of variables I suppose but at least it's good to think about.
~~waterdrop~~
