BOTTOM-UP DESIGN - A Modern & Sleek design provides you possibilities to create an Unique & Stylish aquarium, paludarium, Wabi Kusa or terrarium. ***Lids options are available*** * Partial coverage lid - Three acrylic clips included. With it covered on top, there is still little space left to put on a hang-on filter or hoses. * Full coverage lid - No clips included as it just simply lay down on the top of aquarium, no space left for filters as it is designed to keep a 100% humid inside, so it is ideal to create a terrarium with tropical plants. ***Two Size options*** Model- ET15A, 1.3 gallon - 15cm X 15cm X 25 cm (5.9 in X 5.9 in X 9.8 in); 5 mm glass thickness * Partial cover lid size - 13.5cm X 10cm = 5.3 in X 3.9 in * Full cover lid size - 15cm X 15cm = 5.9 in X 5.9 in Model- ET20A, 2.3 gallon - 20cm X 20cm X 25 cm (7.9 in X 7.9 in X 9.8 in); 5 mm glass thickness * Partial cover lid size - 18cm X 15cm = 7.1 in X 5.9 in * Full cover lid size - 20cm X 20cm = 7.9 in X 7.9 in