Can guppies billy a fish and chase it into the filter? It sounds silly but I can’t explain it! I had three guppies, two yellow ones ( the ones that constantly chase each other) and an orange one. The orange one was, or appeared completely healthy yesterday, but today was found dead in the filter! The yellow ones always bickered between each other and the orange one joined in now and again. Yesterday I watched the normal behaviour between all three, then today couldn’t find the orange one till I got the filter out, could the others chased it into the filter? I have done a gravel clean, filter clean and 10 litre water change