Glass thickness: If the glass thickness is enough, such as more than 8 mm, then under certain conditions, lacing is not needed. However, if the fish tank is large, even if the glass thickness is enough, lacing may be needed to increase the strength.
Fish tank size: Generally speaking, lacing is recommended for fish tanks above 1 m, especially for fish tanks with a height of more than 50 cm. For a 1.5m fish tank, lacing is usually needed to prevent the fish tank from bursting.
Water depth: after the fish tank is filled with water, the water pressure will deform the fish tank. If the length of the fish tank, the thickness of the glass, the water depth and whether the glass is flat or curved lead to a large degree of deformation, then lacing is needed to prevent the deformation from causing bursting.
Shape: For a curved fish tank, it is easier to deform because of its special shape, so it is necessary to tie tendons to increase its strength.
Personal opinion: Although the fish tank is only 1 meter long, its height is 60 cm. It is suggested that lacing is better. If it is a seawater tank, lacing is even more necessary.