Cleaning 2Nd Hand Tank

[DiscoFace]

Sorry if this is in the wrong section or if it has been gone over many times. I've searched and found nothing.

I recently purchased a 55 gallon tank off craigslist and i'm having a problem cleaning this white stuff off of...just about every where! I've got the glass pretty good with a razor blade being VERY careful not to cut into the sealant. But I didn't really want to use the razor on the plastic unless I had to. I didn't want to use any harsh chemicals either but the other day in desparation, I tried a little CLR on a few spots and it didn't help much! What can I do? It's almost to the point where I'm just going to buy all new stuff!

 

[nosoup4you]

Try some vinegar...though I would think that if anything were going to take it off it would be CLR or the like.

 

[SlyPolak]

You have to SOAK in pure CLR for atleast an hour or two, then scrub for a bit... MOST IMPORTANT is to RINSE, RINSE, RINSE afterwards.

 

[waterdrop]

Mineral deposits are a serious problem. Another suggestion (besides the above) that some people have had success with is to buy a couple fresh lemons and cut a "holdable" (in your gloved hand) piece and dip it into vinegar, carrying a lot of vinegar to the surface with it and then rubbing a small area of the black plastic with this combo, letting the lemon juice mix in and using rind to just rub on the mineral deposit for quite a while. The take an old toothbrush and work on this small spot gently, then alternate back to the lemon rind for a while. I don't know, see what you think and give us a report if you try this vs. the other acid approaches.

~~waterdrop~~