You could put another glass panel that fit perfectly into you tank and put gravel on it. You could also get two decorations such as a castle and a skull and lay the glass panel on them, It may look strange but it would work.
Land.
land breeze
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At night, land cools much more rapitly than ocean water. Air over the land becomes cooler than air over the ocean. Cooler, denser air above the land moves over the water, as the water rises. Movement if the air toward the water from the land is called land breeze.
The volume of an aquarium itself will not change if it does not have a lid; the physical dimensions of the tank remain the same. However, without a lid, water may evaporate over time, leading to a decrease in the amount of water in the aquarium. This evaporation does not change the tank's total volume but affects the volume of water it contains. Additionally, an open aquarium may be more susceptible to contamination and temperature fluctuations.
When air traveling over land moves over water and cools down and travels back it causes precipitation because the water is now full of water droplets.
they are over land
The movement of water over land is called runoff. Runoff occurs when water from precipitation flows over the surface of the land, eventually making its way into bodies of water such as rivers, lakes, and oceans.
disputes over land and water
land breeze
they are over land
they are over land