This is the cool old-school aquarium you always wanted and they`re so much better now! The Lagoon I Complete Desktop Aquarium comes with the newest gear: efficient internal filter pump and color-contrasting background. It even includes your first dec orative plant. Tempered glass is 4 times stronger and safer than regular glass. The 3.5 gallon tank fits shelf or desktop. Getting (or giving) a no-stress aquarium has never been easier