That pleco is going to die! One of them will kill the pleco! It is hard to tell with Festae. Just keep your two eyes on the pair. In fact put some glasses on and keep four eyes on them. LoL! I've Been breeding them since the early 90's. No two pair are the same. The female is not always the one killed. Females are extremely vicious at times. That female you have there is very nice and close in size to your male. She can easily kill your male. The best advice is be patient and let the pair of festae do the rest. If all else fails, Purchase 50 tanks and load them up with festae. It worked for me!LoL! Both of the festae are nice and I would hate for you to lose any one of them. Good luck!