Near the top of the water

[Westfield]

I just acclimated some snails yesterday Astraea snails
They seem to have adapted well after about half an hour they scurried around the tank
This morningsome are hanging around near the top of the waterline
Is there a problem
Or is it just normal behavior
All my numbers are good
so I'm just trying to understand
Thanks John

 

[IdahoCindy]

There may be some good-eating at the water line. It's a place that the magnet cleaner doesn't do really well. Just a guess...

 

[Bogue Chitto]

That's what I think. There usually is better grazing around the top of the water. More light hits that area and algae grows faster.