Zebra danios? They won't get too big, 2" or less and they stay slim (slightly plump for the females when carrying eggs). How big is your tank, anyway?
Yes, the chasing around behaviour is normal. It would be bad if you have quite danios... Their chasing wround won't uproot any plants, especially so after they had rooted in the substrate...
They are very attractive and active fish... Good for surface movements... Enjoy them!![]()
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