Hey guys I'm new to this forum and a new frog owner)) i have successfully owned and own fish but having some trouble with my 2 new African dwarf frogs.firstly, I have been told they are really uncomfortable with filters so they do not have one in their own 5 gal heated tank.i have been doing daily 50% changes with treated water and a siphon but it doesn't feel right not having a filter.is there a quiet,not extremely expensive filter I can use , with a pre filter ?another question is feeding.i hand fed them with tweezers once successfully in the 3 days I've had them.is there an easier and a more efficient method?any advice would be greatly appreciated)))thanks