er the main tank of an aquarium. So if you have a 100 gallon tank with 20 gallon sump, this gives you a 20% increase in the total volume of water without much effort. Other aquarium filters like HOB, canister filter, and power filters hold a set water volume but a sump system can be built as big as you need. 

Megafilter

Freshwater aquariums are only limited to utilizing canister filters along with some filter media in a closed packed space in the absence of sump. While if you use a sump you can get a big multimedia filter, huge mechanical filter gobs of filter media and other things like temperature and chemical sensors that you would want to hide in an aquarium. It can provide much more filtration that could ever be likely to in a simple display tank itself. 

Stability

An aquarium sump filter is relatively easier to maintain as compared to other filtration systems. It is undemanding to maintain water quality in a larger aquarium than a smaller one with the help of a sump. It makes the quality of water stable.

Recommended Freshwater Sumps

The following turnkey sumps come recommended by our readers due to their robust construction and proven effetiveness.

Bubblefin Aquarium Sump Refugium DIY Kit for Protein Skimmer Sump - Chamber dividers

Have an extra 10 gallon or 20 gallon aquarium around and want to build a a DIY freshwater sump yourself? Well you have a couple of options - buy some flat acrylic and cut out all of the holes and shapes yourself, or buy this REALLY convenient Bubblefin Aquarium Sump Refugium DIY kit. This is great because you save money by not having to get a 20 or 10 gallon aquarium shipped for a refugium, but you save a bunch of time by using pre-fabbed separators that you can easily install into a regular aquarium to make an "instant" refugium or freshwater sump.

Fiji Cube Refugium Sump Baffle Kit

If you want a little bigger freshwater sump try the Fiji Cube Refugium Sump Baffle Kit. These kits are made to fit into either a standard 29 gallon aquarium or a standard 40 gallon aquarium and easily converts the aquarium into a freshwater sump. People who have purchased this kit were excited about the high quality of the product and the ease with which they were able to create their own DIY sump with the kit.

all the species that are kept as pets. Provided that they are properly taken care of, their lifespan is usually a couple of years. Flame Jellyfish and Lagoon Jellyfish are also popular among home aquarists. Generally, in a 6 gallon fish tank, you can keep three to four 2 inches Moon Jellyfish. In a 20 gallon fish tank, ten to twelve 2 inches Jellyfish can be kept. However, longer tentacles Jellyfish like Atlantic Sea Nettles are required to be captivated in smaller numbers to avoid tangling.

Jellyfish are breathtakingly attractive creatures and keeping them as a pet in a fish tank can add a touch of class in any humble abode.

it with essential minerals. Today there are various automatic fish tank cleaners available that not only perform their cleaning duties efficiently but also help you in saving time. Some of them are as follows:

RoboSnail Automatic Aquarium Glass Cleaner

RoboSnail automatic aquarium glass filter is an automated magnetic in nature glass cleaner that averts algae buildup on the surfaces of aquariums. Its distinguishing feature is that it is activated automatically after its last cleaning time once a day in 24 hours without user intervention. The constant preventative cleaning property of RoboSnail prevents algae from taking hold of the tank surface. It is made to work with most rimless, wall-mounted or freestanding fish tanks. After the initial preparation of the glass surface and completing a simple program mode, this cleaner is ready to go. It can sense the top, right and left edges of the tank and start cleaning according to the user’s preprogrammed parameters of the aquarium. It is well suited for standard glass aquariums from 55-150 US gallon aquariums with a glass size of 6-10mm.

MOAI Robot Fish Tank Cleaner

MOAI is fundamentally a fish tank cleaner but also consists of a full HD camera that can record your aquatic tank fantasies. It essentially consists of two units- one on the outside and one on the inside of the glass with a pad for scrubbing of algae attached to the front of it. These two units are attached via built-in magnets through the glass surface. The outside unit is motorized which helps in its movement. The inside unit moves along with it brushing the algae away. The superlative quality of this automated cleaner is that it cleans the fish tank itself and goes back to its glass mounted charger once it runs out of charging. Its users can schedule the tank cleaning time through their mobile apps and use their phones as a remote control and a joystick to move and control it the way they want. 

Fun Self-Cleaning Fish Tank

Fun self-cleaning fish tank made of shatterproof plastic helps in maintaining the cleanliness of your aquarium. It does not require electricity, high running costs or constant maintenance. You can simply pour a glass of water in your desktop aquarium and it cleans itself in less than 60 seconds. To allow dirty water to flush itself out, place a collection glass below the nozzle just before pouring water in the fish tank. When the water reaches the ideal level, the cleaning stops automatically. This self-cleaning fish tank does not require any cords, filters, fishnets and no removing of plants or rocks and no vacuuming of gravel.

e to its thick and sturdy construction. The sounds are muffled and the outside is kept quiet because of the thick nature of its walls. It contains a UV sterilizer inside it which exposes the algae and bacteria to ultraviolet light (UV Light) and eliminates them. This handy tactic allows you to have clean and healthy water for your pet fish.

6. Fluval (x)06 External Canister Filters

The Fluval 06 series are one of the best performers when quietness is concerned. These filters have their patent technology for dampening the sound in the motor. You can only hear them work when you place your head inside the aquarium stand where you place them. They are a good choice for people with light sleep or who get easily distracted or disturbed by background noise. The only time they make loud noise is right after you install them. This is due to the presence of small air bubbles inside. This problem can be solved by priming. Priming helps in extracting air from the cartridges. This filter is easy to maintain and highly durable that probably lasts 5 or more years.

7. Pen Plax Cascade Canister Aquarium Filter

The Penn Plax Cascade is another impressive canister filter that operates without sound. They are of reasonable price and come with super customizable features. These filters are strong and move a lot of water. The Cascade series of Penn Plax is applicable for large aquariums housing long-finned fish. They are advertised for pumping up to 350-gallons per hour. If at some point these filters start to make a noise of some nature- that is probably due to the trapped air inside. But the good thing is they have self-priming buttons installed in them which can solve this. Therefore, this is an excellent filter that can pump thousands of water gallons in a day with complete silence.

deally, all these
fish species need larger tanks to grow healthily. So they should be transferred
as they mature.