hi... i have 2 kenyi cichlids currently ina 20 gal... im planning to move them to my 50 gal in the coming weeks.. they are around 1.5 to 2 inches... one is really colorful and the other one is dull in colour with a hint of yellow and an egg spot... so im guessing i have a male and a female.. recently the female stopped eating and always hides in the corner.... why is this..?? is this because there is only one female to the male..??? and also the male kinda vibrates its tail infront of the female... are they trying to mate..?? arent they too small..??