Platy's Attacking My 2 Cory's

[Nemo8269]

My young Platy's are pecking at my 2 Cory's causing severe skin and fin damage. the pH is 6 which i believe is too low for the Platy's, They prefer 7, would this be a factor regarding there behaviour towrds my Cory's.

 

[i_ganjaman]

I would think the ph is low...have you got hiding places for the corys to go?

 

[Nemo8269]

I would think the ph is low...have you got hiding places for the corys to go?

Yes they do but the other fish follow them.