North Australian Chameleon Shrimp
Caridina sp WA 4
General information: This small shrimp was previously identified as Caridina serratirostris as it is very similar in shape, colour and habits to this species. However Dr Tim Page of Griffith University was kind enough to run tests on the DNA of this shrimp. Dr Page wrote - Your C. serratirostris from Howard River, Gunn Pt. Rd Xing, Darwin Area groups with C. sp. WA 4 (Page et al. 2007) from WA. It is not C. serratirostris, which I also have in the tree. The other specimens I have of C. sp. WA 4 come from the Fitzroy and Ord Rivers (WA). These serratirostris-like species are very divergent from other Caridina, and I think that Yixiong Cai from Singapore, who is working on them at the moment, might move them to a new genus. We are thankful for the help from Dr Page. It is a very small species of Caridina that lives among Vallisneria beds and leaf litter in its natural habitat here in the top end of the NT. It probably has similar diet to other small similar shrimps which are a scavenging omnivore and will eat periphyton, the layer of algae and bacteria adhering to the hard surfaces in a submerged environment. In the wet season floods it leaves the river bed and can be found in the grassy areas in shallow water at the edges of the flood.
Cultivation notes : Best kept in a small aquarium without any fish. It is a small species and would be easy pickings for any fish especieally during moulting time when crustaceans are most vulnerable. The petshrimp web site suggests using weathered leaf litter, http://www.petshrimp.com/serratirostris.html , as a source of nutrition. The shrimps will also take flake foods and have been observed gathered over a small piece of fish flesh. Be very careful with tap water and other chemicals, always prepare your make up water a week before you need it and keep it in a shady place in the garden where mother nature can add the final preparations to making it safe. The practise of doing a waterchange from the tap and adding chlorine remover as you go is not recommended.
Distribution : In Australia it is found in the NT and WA.
Reference: Communication with Dr Tim Page, Griffith University, Qld. Page et al (2007), "Molecular Phylogenetics & Evolution 43:pp.645-659 "
They all arrived safely and came very quickly
Another fast, generous and well packed order. A mix of sizes and all settled in quickly. Haven’t seen any colour come out yet but it has only been a week.
I received my chameleon shrimp today. they were packaged very safely, are alive and seem healthy from what I can tell. I hope they stay that way, wish me luck :)
Beautiful juvies, thank you!!!!
Great quality shrimp as always, they change colours all the time. Sometimes blending in with the blue cherrys, other times mixing it up with the red nose going clear, when they feel like going rogue they can be red/maroon, yellow, or they just blend in with the wood or plants and you only see them if you spot the stripe on their back. Very cool crustaceans :)