Found, appearing or present everywhere.
Glossary: ubiquitous
Glossary: ultraviolet
Invisible, continuous spectrum of light having a wavelength just shorter than the violet end of the visible spectrum but longer than that of x-rays.
Glossary: ultraviolet steriliser
Used to kill bacteria in the water column by exposing it to ultraviolet light.
Glossary: unculi
Plural of unculus.
Glossary: unculiferous
Having unculi.
Glossary: unculus
Horny projection originating from a single cell of the epidermis found on the disc of Garra sp. and catfishes of the family Sisoridae, for example.
Glossary: undergravel filter
A filter which works by drawing water down through the substrate, where the cycle bacteria colonies are located, before returning it to the aquarium. Difficult to keep clean and now considered old fashioned.
Glossary: undulate
To move in a smooth, wavelike motion; possessing a wavelike appearance or form.
Glossary: undulating
Moving in a smooth, wavelike fashion.
Glossary: unicuspid
Having a single point or cusp. Commonly used in reference to teeth of such form.
Glossary: uninomen
Scentific name comprising a single word, used for taxa higher than genus.
Glossary: unisexual
Fish species of which all individuals are the same gender.
Glossary: unpaired fins
The dorsal, caudal, anal and, if present, adipose fins.
Glossary: urogenital
Of, relating to, or denoting both the urinary and genital organs.
Glossary: urogenital duct
Tube draining the urogenital organs.
Glossary: urogenital papilla
See genital papilla.
Glossary: urostyle
Upturned, posterior tip or backwardly-orientated process of the lower vertebral column, generally comprised of fused vertebrae; series of bones articulating with the last true vertebra; usually included when counting vertebrae.
Glossary: uv
Abbreviation of ultraviolet.
Product reviewers wanted
Hello! Very much interested in writing for you, please include me in the info. Thank you for the opportunity!
6th Sep 2020
Product reviewers wanted
I would be interested in reviewing products. Before retiring I was a technical writer and managed a Quality Management Program.
30th Aug 2020
Product reviewers wanted
I'm interested and can write reviews from the perspective of someone new to the hobby. I'm only 3-4 months in, but hopefully I can help someone that's...
23rd Aug 2020
Product reviewers wanted
I’m interested in doing this if there is still availability, it sounds like fun! Thanks
19th Aug 2020
Barbodes semifasciolatus – Golden Barb* (Barbus sachsii, Puntius schuberti)
I simply had a question (please forgive if this is not allowed, I read the FAQ but I was not sure). I was wondering if there is any evidence of offsp...
12th Aug 2020