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The dorsal fin contains eight spines, although the first of these is tiny and hidden and the second is long and blade like, and 9 soft rays. The membranes between the spines and soft rays have deep incisions. The anal fin has three spines and seven soft rays. The caudal fin is rounded. The colour of the head and body is white to pink to reddish ...
The fish is most often kept in community tanks by aquarium hobbyists. The cherry barb is a schooling fish and is best kept in groups of five or more individuals, [8] though the schools are often less discrete than those of other barbs. Within these schools, there will most likely be a hierarchy.
The male courts the female by posturing in front of her quickly raising then lowering the forward dorsal fin repeatedly. The recommended male-to-female ratio is about 1:3, due to the polygamous behavior of dominant males. Threadfin rainbowfish do well in aquariums of 20 US gallons (76 L), however 30 US gallons (110 L) is preferred.
As long as the fish have a place to hide. It is necessary to keep them in a school of 6–8 other silver tetras in a 30-gallon tank. That is 100 cm (39 in) long tank. With a pH range of 6.0–7.5. The temperature of the water should be 24–28 °C (75–82 °F). The fish are peaceful and can be kept with other non-aggressive fish.
Tank mates of Pseudanthias heemstrai should be peaceful and all should be last to enter the aquarium. As the diet they can eat most regular aquarium foods, like finely chopped various frozen or fresh meaty foods such as mysis, fish flesh, shrimp, squid, clam, etc.
The adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders ( Percopsiformes , Myctophiformes , Aulopiformes , Stomiiformes , Salmoniformes , Osmeriformes , Characiformes , Siluriformes and Argentiniformes ...
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The body is cylindrical, laterally flattened and has an iridescent greenish or bluish basic color, with two or three big black patches, which are outlined in orange and an additional ocellus on both the opercle and tail fin. The belly is usually yellowish. The long dorsal fin has 40–43 fin rays, while the soft anal fin has 28–31 rays. [1]
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