Diurnal - Active during the daylight hours.
Dorsal Fin - The fin at the top of many fish. In many species of fish (such as cichlids) is distinctly separated into a spiny front portion followed by a "soft" rear portion.
Diurnal
Daily or during the daytime. see also Diurnal Rhythm
Diurnal rhythm ...
Diurnal (dī úrn'l) A term used to describe animals/fish that are active during the day rather than at night
Author: anthony on 05/4/04
Encyclopedia 1.0 by Rebecca Smallwood ...
Diurnal
Gender:
The female is a dull grey/brown and when in breeding mood she will dispaly the typical betta vertical bars.
The male is a deep, rich brown and his tail pectoral and anal fins are bordered with white ...
· Diurnal migration = vertical daily migrations of some specific aquatic organisms. Usually these are done for avoiding predators at the day and for preying on their food at night.
A peaceful, diurnal shoaling species that should be kept in groups of four or more individuals.
the occasional dead fish that sinks to the bottom - plecos are primarily scavengers and are too poorly designed to be hunters, but large plecos will eat small characins at rest at night - all my research indicates indirectly that plecos are diurnal...
Diurnal changes in photochemical efficiency and xanthophyll concentrations in shallow water reef corals: evidence for photoinhibition and photoprotection. Coral Reefs, 18:99-105.
Chen, C., Y-W Yang, N. Wei, W-S Tsai and L-S Fang, 2005.
Corydoras catfish are diurnal fish.
SB: Smaller tetras, Discus, Dwarf Cichlids, Livebearers, Gouramis, Barbs, Danios, Killifish
FOOD: Live; aquatic insects, white worms, Tubifex, Brine Shrimp, insect larvae; tablets; flake ...
Nocturnal feeders in a diurnal community tank often suffer from malnutrition and are often the first species to wane and die because of it.
These loaches are diurnal (come out during the day) and go to sleep at night, literally. They find a nice nook to wedge themselves in (preferably in multiples of 3) and sleep all night, often on their sides or even upside down! ...
Part of my current catfish fancy are some tanks of schooling diurnal cats.
have been shown to be diurnal and crepuscular rather than nocturnal and activity can even peak at twilight (Paxton 1997). Corydoras are very good choices for a community aquarium, and are widely kept throughout the world.
"Diurnal" fish are those that are primarily active during the day; those that are most active during the night are called "nocturnal." Some fish are especially active at dusk and dawn, and are referred to as "crepuscular.
In common with all pencilfish, the fish have a diurnal colour pattern. During darkness, the horizontal lines break up into a series of dashes.
Pelagic catfish are diurnal (active during the day), swim in the middle of the aquarium, and prefer to live in schools. They are found in clean fast moving waters, thus in the aquarium they need good water movement and frequent water changes.
Also, while some deep ocean fish never stop moving a great many fishes live nearly motionless lives and many do so on a regular diurnal/noctural cycle, some active by day others by night. So we can't generalize and say that all fish sleep like we do.
diurnal temperature fluctuations; dissolved oxygen profiles; lake size). However, Tilapia zilli and water hyacinth would no doubt find Lake Nawampasa a perfectly suitable habitat. The voracious T.
You may want to bring together a harmonious combination of peaceful fish which includes surface-feeding labyrinth fish, middle-feeding schooling fish, and bottom-feeding substrate sifters. A combination of diurnal and nocturnal fishes will give you ...
Mixing large, active nocturnal fish with peaceful, diurnal fish often causes problems. Varies with species, from the ultra-peaceful khuli loach, to the boisterous clown loach, to the semi-aggressive yo-yo loach.
Moray eels are nocturnal predators and are pretty still at during the day but at night time prowl around looking for food. They will settle in to a diurnal type of feeding routine though after a little while.
 See also: Fish, Water, Species, Aquarium, Spawn
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