Aquarium Filter Under Gravel

An under gravel filter is a type of aquarium filter that filters the water from the bottom up. The filter consists of a plate that covers the base of the tank and which is covered by gravel. Water is pulled down through the gravel by air bubbles rising from an air pump connected to some tubing which has small air stones on its end. (See also Aquarium Air Pump) The rising air bubbles pull water through the gravel, through holes in the plate at the bottom of the aquarium, and then causes this water to flow back into the aquarium through one or more tubes on the underside of the filter plate. It’s kind of like how your lungs work: you breathe out carbon dioxide and inhale oxygen!

An under gravel filter is a type of aquarium filter that filters the water from the bottom up.

An under gravel filter is a type of aquarium filter that filters the water from the bottom up.

When using an under gravel filter, you’ll want to use small pea gravel (1/2″ or less) as your substrate. The purpose of this is to allow for good circulation and aeration without making it difficult for your fish to find food.

The setup involves placing some sort of pipe or tube into the tank that will send bubbles up through your substrate and out into your tank’s water column. This creates turbulence as well as drawing down dirt and debris from your substrate which then gets removed by other types of filters in your system (such as bio-wheel filters).

The filter consists of a plate that covers the base of the tank and which is covered by gravel.

The filter consists of a plate that covers the base of the tank and which is covered by gravel.

The filter plate is usually made of plastic, though it can be made from other materials such as ceramic. The filter plate is designed to be held in place by suction cups or clips. The purpose of this part of the aquarium filter is to provide an area for bacteria growth that will cleanse your aquarium water before it reaches your fish and plants.

Water is pulled down through the gravel by air bubbles rising from an air pump connected to some tubing which has small air stones on its end. (See also Aquarium Air Pump)

Air bubbles are pushed out of the air pump and into the water by an aquarium air pump. These air bubbles rise to the top of your aquarium and then push down on it, pushing water down through your gravel. This water then flows back into your tank through one or more tubes on the underside of your filter plate.

Aquarium undergravel filters come in many different designs, but they all work in essentially the same way: Water is pulled down through a layer of gravel by air bubbles rising from an aquarium pump connected to some tubing with small stones (air stones) on its end that creates oxygenated currents within this layer when operated at a low rate for optimal biological filtration as well as mechanical filtration since most fish waste ends up in this area due to their natural feeding habits.

The rising air bubbles pull water through the gravel, through holes in the plate at the bottom of the aquarium, and then causes this water to flow back into the aquarium through one or more tubes on the underside of the filter plate.

The filter plate is covered with gravel and it’s the rising air bubbles that causes this water to flow back into the aquarium through one or more tubes on the underside of the filter plate.

The gravel is covered with a layer of filter media, which is then covered by biological media, followed by mechanical media (filter floss) and finally carbon.

It’s kind of like how your lungs work.

If you’ve ever been to the doctor, you’re probably familiar with a simple yet powerful concept: the lungs. You know how when you breathe in, air goes into your mouth and down into your nose and throat? That air flows into tiny tubes in each lung called bronchi (singular is bronchus), which lead to even smaller tubes called bronchioles that branch off from each other like tree roots until they end up in hundreds of tiny sacs called alveoli. The alveoli are where oxygen gets released into our blood stream so we can use it for energy!

That’s essentially how an aquarium filter works too—it sucks water through gravel at its base, pulling out impurities along the way before releasing clean water back into the tank where your fishies can swim around as they please!

The aquarium filter is an important part of keeping your fish healthy, but it can also be a little confusing to understand how exactly it works. Luckily for us, there are plenty of resources on the internet that explain this process in much more detail than we have here today. If you’re interested in learning more about under gravel filters and what they mean for your aquarium, be sure to check out our other blog posts or even see if there’s something new coming up soon!