Albino cory catfish behaviour

[Sharpo86]

Hi, new here.
Just introduced 4 albino cory catfish to my 20 gallon tank (already has 7 neon tetras & 1 pleco in for around 6 months now). But its been a week and the corys seem to be on one all the time, is this normal?
Swimming against the glass up and down like maniacs. Its this normal?
They do scan the floor but mostly up against the glass

 

[DoubleDutch]

Yep, they're adapting.

 

[Colin_T]

Swimming against the glass up and down like maniacs. Its this normal?

It's called glass surfing and is common on new fish when added to a tank. They are learning where the walls are and how much space they have to swim around.

 

[outofwater]

To add to the comments above, you also will see this behavior (glass surfing) if they're looking to spawn eggs, and sometimes just because. Cories are quirky fish

 

[Ridgerunner]

My cories go bonkers with a water changes. Must feel good.