Are my snails blowing bubbles? Why are they always seeming to be at the top of my tank?

Question

My snails are seeming to be at the top of my tank a lot like right where the water stops and there are a bunch of tiny bubbles lining my tank on the inside (the top part) Whats this about?? Could my snail be blowing them or something?
Water Parameters:
Ammonia: 0-.25
pH: 6.8-7.0
All the rest 0

Thanks

Answer 1

Your snail isn't blowing the bubbles. This may be cause by the type of water conditioner you use - some change the water tension so your filter caused bubbles to form where the returning water breaks the surface - these will float and collect at some area on the surface where it's calmer. I assume you also test for nitrates and these are also zero - otherwise, the bubbles may be caused by having too much dissolved organic matter in the tank, but from having ammonia, I'd guess that your tank is still cycling - probably no chance for a lot of wastes to build up yet.

Some snails (Apple/mystery and Malaysian trumpet snails learn to eat from the top of the water). They contort their bodies as they float so anything else floating on the water gets funneled toward their mouth.