Hello! I'm new to this site as well as to fish keeping. My renters left fish tanks at my rental property when they moved out. Poor fish had been abandonded, and I am clueless. I have identified the fish and I think a few problems. there are 2 20 gallon tanks and 2 5gallon hex tanks. each 5 gallon hex tank has a betta (one male and one female) I have added a heater, filter, gravel and each has a cave and plant(plastic). 20 gallon tank #1 has 5 black skirt tetras, 3 spotted cory catfish and a betta (gravel, caves, airstone, plant, heater and filter). 20 gallon tank #2 has 5 ballon belly mollies and 5 platies...oh, and problems (filter and heater)most of the fish have white spots-ich. one is so bad that she can barey swim. We are moving in 4 days, about an hour away. I have had these lil' buggers about a month and have become slightly attached (blush). The renters also left behind a brand new 65gallon tank, stand, filter, etc for a new set up. I will honestly say that I am not enjoying all these tanks sitting around, but don't think i have much choice right now. any ideas or suggestions are greatly welcomed!