What to do if a molly fish is lonely?

How deep is the water in Lake Ontario? How many kinds of fish species are there in Ethiopia? How do sharks defend themselves? How many different species of chondrichthyes are there? What is a Yellow fish with a black tail spot a large stomach and 1 inch length and He looks like some kind of molly? Fast working mermaid spells? How are trout and lungfish alike? How fast does herbie go? What is the correct temperature for swordtails? What happens if a fish follows another fish? Can a fish walk like a man give a reason? Where can I download a free fish screensaver? What are the disadvantages of fish and chips? How many fins does a shark have? Who invented the first fishing lure? What are two inherited behaviors of the blobfish? What is one way a saltwater fish controls the concentration of salt in its body? How does fishing affect the food chain? How far can flying fish glide? Why madreporic canal of starfish is also called stone canal?