To original poster, im sorry for the dumb remark i posted and am going to try and word it better so others can learn from your mistake.
I recently tested my tank water and found certain levels were high and added a checimal called Primer. I woke this morning to find my Angel Fish stuck in between the new lava rock shelter and the glass. The only way to get it out was to remove the lava rocks and in the process of doing so i cut my hand. Whatever i put in the water is making my cut burn pretty bad, i now learned to know what i'm putting in there, so next time it doesn't affect me like this.