What cleaner to use for a retired tank?

[CincyGida]

I have a tank that is just now retired but has scum on the inside walls that stinks. What is a good cleaner to use that kills everything but is safe enough for me to use the tank again?

I don't want to nuke the tank and not be able to use it in the future because of chemical residue.

Thanks!

 

[ri]

Last time I had to clean a "dirty" tank I just used vinegar. Still takes a bit of "elbow grease" but it is safe.

ri

 

[DgenR8]

As long as you rinse well after cleaning, you can use bleach.

 

[llewoh05]

razor blade and hot water.

 

[reverendmaynard]

Be careful using a razor blade inside the tank. Don't want to cut the seals!:mixed:

 

[CaptiveMarine]

I just bought 12 fifteen gallon tanks that had been stored for a couple of years for my new hatchery, and I found hot water and vinegar works the best. I also used a single edge razor blade and a algae scrub pad.

 

[CincyGida]

Thanks all for your replies!