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Galaxy Rasbora pacing back and forth against glass?

2205 Views 7 Replies 7 Participants Last post by  shift
I brought 5 rasbora and I'm pretty sure 2 are male and the rest female. I added them a day ago to a group of neon tetras and the females have fitted right in, shoaling with the tetras whereas the males are only seen just cruising back and forth. Could it be to do with the reflection of themselves?
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