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Common Pleco

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Post Sat Jan 27, 2018 8:36 pm
Dave.L. Level 1 Member
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Posts: 6
Location: buffalo mn
how do you sex the common pleco?

Post Mon Mar 11, 2019 1:21 pm
meck3427 Level 1 Member
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Posts: 22
From Planet Catfish:

"Comparison of the genital papilla in mature fish shows the differences in the sexes to the trained eye. In males this is a small yet thick stump which noticeably protrudes from the fish's undercarriage. In females it is less obvious and is recessed or lies flat with the body."

Post Mon Mar 11, 2019 2:24 pm
Passionfish Level 20 Member
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Posts: 12098
Location: apple valley, mn
Dude from Germany, Ingo Siedel (I think) stated:
Look down at fish. Broader head/body is female, narrower head body is male.

Genital papillae are likely definitive but perhaps only after female spawns at least once (papillae matures after the first spawn).
Like a complete unknown

Post Wed Mar 13, 2019 9:52 am
meck3427 Level 1 Member
Level 1 Member

Posts: 22
Passionfish, I have read that about more than one species of pleco, is there a general rule on age of fish or size relative to their potential max size?

Post Wed Mar 13, 2019 10:18 am
Passionfish Level 20 Member
Level 20 Member

Posts: 12098
Location: apple valley, mn
Ingo did not elaborate. Heard a talk he gave in Cleveland.
The enlarged female papillae I have observed comparing young females to post egg-laying females.
Like a complete unknown


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