Anyone know what to look for to tell if SDs may be matig or about to mate? I have been doing very frequent WCs and have amped up their diet with brineshrimp, seaweed, spirulina, peas, bloodworms,etc. Their finnage is chaging color pretty fast and a couple of them are behaving a little weird: nipping other SDs more, rubbing together a little, etc. Anyone have experience with this?