I agree, looks like a FH, where the predominance of genes passed on are from Herichthys.
Here is a normal color male carpintus.
Below a female in spawning dress.
Pair caring for a spawn.
One of the reasons for not using common names like green or blue Texas, beyond that fact of carpintus not coming from Texas, is that there are a number of others in the genus Herichthys, that look similar, about a half dozen species.
Below H.tamasopoensus
And the detritus eating form of H minckleyi below