Thanks for the tip! I didn't even think to attach pics.
I went home last night to take some and found this waiting for me...
So I guess this bubble question no longer applies!
But I still hope to add a snail and am still concerned with the spot on his head. The pics are horrrible and I apologize but I hope you can see what you need to. This is my blue fan tail? (I think)
You can barely see the lighter gray spot on the top of his head above his eye. It literally looks like a patch of 5 or 6 scales was scraped off.
Another pic... of the spot on his head
The mystery snail I would like to add...
And his current tank layout. 2.5 gallon, undergravel heater, planted tank. Hope this helps!