Guppy's Fecal Matter
I noticed that one of my guppy's (orange) started to go up to another (yellow) and eat their fecal matter right off of them before it dropped. I feed them twice a day once in the morning 9 am and once in the evening 9 pm at night. I have three guppy's all together and the other one (black/orange) doesn't do what the (orange) one does. I've looked everywhere for advice!!!! Please help me...