What does UGF stand for?

Under Gravel Filter (aquarium)

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

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Unassigned Geriatric Evaluation and Management (Bundoora, Australia) Underrepresented Graduate Enrichment Match (Arizona State University; Tempe, AZ) Unified General Equation of Motion (quantum computing software) Union Générale des Etudiants du Maroc (French: General Union of Moroccan Students) Unit on Genetics Endocrinology (National Institutes of Health) Union Grove Elementary School (Wisconsin) Uniform Guidelines on Employee Selection Procedures Ultrasound-Guided Embryo Transfer (pregnancy) Under Graduate Entrance Test Underground Experiment		Underground Facility Underground Groove Front (band) Unholy Ground Forums United Givers Fund United Grappling Federation (California) Universal Generating Function Universal Gnostic Fellowship (Ridgecrest, NC) University of Great Falls (Great Falls, MT, USA) Unserviceable Generation Factor Urogenital Fistula

Samples in periodicals archive:

An under gravel filter is not recommended for large aquariums since large aquariums generally have a bigger fish load which can cause the plates of the under gravel filter to clog.

What Products Should I Use to Keep My Aquarium Clean

Some of these are the protein skimmer, biological filters, canister filters, under gravel filters, wet and dry trickle filters.

Saltwater Aquarium Equipments

If you have an under gravel filter, it is very important to clean the gravel when you do your weekly water change.

Pet Care - How to Clean A Basic Fish Tank