Quote Originally Posted by Luke View Post
Ive thought about this too for our whites tree frogs, Im wondering in the UK what i can get hold of and use to clean water marks off, without using something that the frogs will absorb?
The razor blade mentioned above is a chemical free way to clean glass. Keep it wet as Lynn suggested. Any kind of water can be used for this as long as you dry it thoroughly afterward with a paper towel. Just be sure you don't cut the silicone on the tank, the frogs, or yourself.