My pair of Siamese algae eaters have been acting strange lately. I have zero experience with breeding (aside from the kind we humans do) so I don't know what to look for. They circle each other in a kind of jerky fashion and their colors fade in and out as they are doing so. This is different from their normal behavior and all water parameters are good, so I thought they might be getting ready to breed. Anyone out there have any tips or experience? Thanks in advance.