Howdy - just joined this weekend. I hope to learn a lot here. I've had tanks since I was a kid but have recently become interested in bigger tanks and bigger fish. Nothing fancy yet but working my way in that direction. My biggest tank is only 90 gallons. I have a Tiger Oscar and a Lima Shovelnose Catfish in that one. I have 3 smaller tanks between 10 and 40 gallon with random guppies and Cory cats. That's it for now. Happy to be here.