Difference between l333 and l066

Plecofarm

Member
Dec 26, 2013
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Michelago
Hi I've have some l333 and l066 and I'm trying to confirm that they are in the correct groups.
Can anyone confirm for me if you tell from shape of tail.
I thought I read somewhere that one type has an L shape to space missing at tail tip and the other look like a half moon?