Inverts found behind the tank

[k2-]

My tank backs up to a wall - I found bunch of inverts (specially snails) behind my tank while cleaning dried up ….
What am I doing wrong ?

 

[blaxsun]

Sometimes snails get triggered into "feed mode" which results in them beelining in a straight line until they run into an object (this can be the rim of a tank, powerhead - or occasionally the floor). You're not doing anything wrong - this sometimes just happens with snails.

 

[bradreef]

Sorry, wrong reply