A fish tank that is either 25, 30 or 35 gallons in size is probably most accurately described as being ‘medium’ sized, and is probably the kind of aquarium that most fish keepers will be looking for. We created this list of the best 25, 30 and 35 gallon fish tanks that we could find, and hope that you’ll find the many hours of research we’ve spent on this post useful!

SeaClear 30 Gallon Show Tank


If you’ve spent any time looking at our site, you’ll know that we consider SeaClear to be one of the best companies to buy a fish tank from – and this 30 gallon show tank is no exception. Here are the main features of this aquarium:

  • Available in 3 colors – blue, black and clear
  • Dimensions – 12 inches x 36 inches x 16 inches
  • Rectangular shape
  • Made from acrylic – a lighter and stronger material than glass
  • Fluorescent hood (with fixture for bulbs)
  • Suitable for freshwater and saltwater

SeaClear 30 Gallon Show Aquarium (With Hood)


This is very similar to the other 30 gallon SeaClear show tank in this list, the main attraction is the material that this is made from is – finest cast acrylic for a great look. Here are the other features of this aquarium:

  • Finest cast acrylic
  • Fluorescent hood
  • Dimensions – 12 inches x 36 inches x 16 inches

SeaClear 30 Gallon Fish Tank



This is exactly the same as the other 30 gallon show tanks in this list, except it’s available in blue. Here are the main features again:

  • Dimensions – 12 inches x 36 inches x 16 inches
  • Constructed with cast acrylic
  • Comes with a fluorescent hood with fixtures for bulbs


29 Gallon SeaClear Tank


29 Gallon SeaClear Starter Kit




25 Gallon Clear For Life Fish Tank Cube


35 Gallon Clear For Life Hexagon UniQuarium



25/30/35 Gallon Fish Tanks & Aquariums (Kits & Stands)