Cleaning a reef tank for FW

[soulFish]

Can you clean all the calcium deposits etc off a glass tank? Here is a tank I'm thinking about getting, but it's full of deposits, even on the overflow.

It's a 180 BTW "All Glass"

 

[andy1234]

when i got my 135 it was used for a reef. on the way back to my house i stopped at one of those car washes you do it your self and power washed it out. then when i got home i washed it again with the hose for a while just incase there was and remnants of wax in the power washer. make sure you have a old blanket you no longer want under the tank thats how i did mine.

 

[Fishermoe14]

i hear vinegar helps loads...

i usually do an initial scraping with razor blades then i fill the tank up and let the calcium soak for a bit.. it makes it a bit easier to get the rest off

 

[midnight]

it should all come off
with alot of work
like said above
razor the chunks off
lemon/lime/vinegar/chemicals to get the next layer
then on my tank i had to wet sand spots with 2000 grit to get that last lil film off
but im picky

 

[K626]

yup, what they said. If you get a razorblade it should mostly come off unless it's in some scratches in the tank. Vinegar works well on any kind of calcium deposit, eats it right up. It also works for cleaning toilets........