Cleaning my tnak

[kclester]

I have a 10 gallon FW tank and over the years it has collected some type of white stuff around the top of the tank and i cant get it off.....any ideas on how to clean this tank ?

 

[shinobi9119]

that used to happen to my fw tank when I had one. I used vinegar and water

 

[markeo99]

vinegar here also its acidic and eats the lime and calcium deposits off

 

[butrfly2536]

we also use vinegar. It works well and is safe.