I have 7 or 8 that appear to have come of age - will survey and get back to you but should be able to assist. If so would be inclined to propose an even "sex change".
Had a small batch of eggs the first night - could be one of your girls was responsible. And by the way, you should be aware that male Scleromystax sometimes develop an appetite for eggs as did one of mine. Oops - but just so you know. Kronei are particularly bad in this respect.