rays always hanging around overflow box?

  • We are currently upgrading MFK. thanks! -neo

Bluebarry

Exodon
MFK Member
Jan 19, 2011
87
24
23
China
are all rays like this? most if not all my rays always tend to stick around the overflow box on one side of the tank, leaving the other side of the tank untouched. would it be possible that the return flow is too strong and pushing them towards the overflow?
 
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