After Ty drinks or has a bath, he always expels lots of mucus from his nose and mouth. He constantly does this and I have taken him to a vet but he said Ty was fine. Ty also drinks the mucus after it comes out of his mouth & nose. Do you ppl know what the problem is? (Humidity 40-70%, temps 100F, powersun bulb. Tank is a little.....a lot on the small side 16X16inch)