just building a hood to fit my 3ft tank out of plywood i need to stain it walnut to match my base but what varnish is safe and will the inside need painting or varnishing with anything ?
Normal polyurethane varnish is quite safe, once it's properly dry. Do make sure you don't get one with any added fungicides or anything; there are a few that contain them. It will say on the tin
got a wilkos own polyurethane fourmula one doesnt mention anti fungals thanks for advice guys will post pics once ave got my lazy butt in gear n built it