Any one no or have pix of what your plants look like if your grow tent is toxic?????????
thats kind of odd to ask, you need to define toxicity.
IF your grow tent is made out of any kind of organic material (wood/MDF/OSB...Cotton/hemp...) those surfaces can retain moisture from humidity, and can mold over. the mold would be blueish-greenish, and it would spread to your plants, causing more mold.
If you painted your tent with lead paint, you could have toxicity...
if your bulb busted you could have mercury toxicity...
your plany may have botrysis/budrot?
show us YOUR pics, and we can help you.