,,, i have secured inside the tank using aquatic sealant, note this is complete flush along the rear panel.
I should have posted the query before I secured the mirror but my main concern is if the water would become toxic and not it the mirror image errodes.
The problem the removal of the mirror to try n scrape off the sealant and remove it from the tank, but to be honest not sure if i am motivated to do this because it will leave nasty glue streaks on the back of the tank.
Dimension of the tank are (Width x Length x H) = ( 2F x 1.5F x 2F) so not the biggest but as this is my first tank I thought to begin with the small size before I proceed in building a large 1, so far I jus realised the amount of committment required.
Neways thankx for the quick replies this is a great site and will be in touch very soon.