Sex ID on Synspilum?

eyespot

Plecostomus
MFK Member
Mar 17, 2007
170
85
61
Williamstown, MA
I bought this synspilum about a year ago at 3 inches and it's now about 8 inches (some keepers on here argue there is a distinction between melanurus and I bought mine as a synspilum). It has blue eyes which isn't a guarantee it's a male but I thought I'd throw that out there. On a slightly unrelated note I owned a 14" dominant male about 25 years ago that developed a healthy nuchal hump and I noticed I rarely ever see adult males with nuchal humps anymore. I'm leaning towards male but I'd like to hear informed opinions.

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