General disinfection is 1:500 (2ml in 1 liter of water) = daily cleaning use
High level disinfection 1:250 (4ml in 1 liter of water) = once in a while to kill bacteria, fungus, most viruses (shouldn't be allowed to come in contact with animal)
Top level 1:125 (8ml in 1 liter of water) = kills everything like parvovirus etc. also shouldn't come in contact with animals, and more than likely, you won't ever need this level...
If you forget again or whatever you can look it up on pro exotics website. It's in the description of the product itself. I'm sure Rich has it listed on reptile basics' website as well