As the title suggests I have a 20 gallon long tank and I was thinking about getting a semi-aquatic frog (still researching my options). I wanted to make it maybe 2/3 water and 1/3 land and I can't seem to find the name of it now, but there is a particular type of filtration people suggest for that kind of set up. I was thinking a pond filter or sometime. Any advice anyone could give me on having an aquatic set up would be nice too. I've kept many tropical fish so cleaning water isn't a foriegn concept to me. And I think Mossy frogs are cool looking but it sounds like they would need a 30 gallon, there are also FBTs but they're too mainstream (yeah I'm being a hipster hahaa!) but any other kind of frog suggestion is accepted. Anyway all I need is filter suggestions and froggie suggestions. Thanks muches everyone!