Fish Keeping



Fish keeping is a particularly attractive hobby, not least because it is dynamic and experiences add to the wealth of knowledge already amassed in books and online resources. Thus my fish keeping advice, opinions and information may change as new knowledge becomes available. These fish keeping articles therefore come with the obligatory health warning, i.e. there's no guarantee that the information is 100% correct!

I hope that these fish keeping articles are read and assimilated in the spirit in which they have been freely published here. Please take a minute or two to visit the sponsor's links and banners as they have supported this site and allow it to operate.

By Tristan Lougher: courtesy of Marine World Magazine

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  Aquarium Supermarket

Exotic Fish Keeping:
1. Helfrich’s Dartfish
2. Watanabei Angelfish
3. Cocos-Keeling Angelfish
4. Purple Moon Angelfish

5. Blue Throated Triggerfish
6. Red Speckled Coral Goby
7. Splitfin Flashlight Fish

Aquarium Wonders:

1. Boxer Crabs
2. Cathedral Coral
3. White Moon Snail

Friend or Foe:

1. Star Fish & Brittlestars
2. Sea Urchins & Cucumbers


Purple Moon Angelfish
Centropyge venustus


The purple or half-moon angelfish is an infrequent import from the waters at the extreme south of its natural range in the northern Philippines where it is being collected with increasing frequency for the aquarium trade. This beautiful dwarf angelfish is found in some reference books under the Latin name Paracentropyge venustus, a genus name that is not currently seen as valid. This will inevitably change in the future as scientists bicker amongst themselves to sort the taxonomy out but we had best leave them to it and concentrate on the husbandry of this species.

Purple Moon Angelfish

In common with the other ex-member of the genus Paracentropyge, the multibanded angel (C.multifasciatus) see inset, the purple moon is a fish of overhangs, ledges and caves where it can be observed swimming upside-down in a secretive manner. For this reason it has been suggested that dimly-lit aquaria are preferable but given the acquisition of a healthy specimen that is feeding enthusiastically this species grows hugely in confidence and will swim in the open brightly-lit waters of reef aquaria albeit never too far away from a suitable bolt-hole.

Fit is vitally important that only feeding specimens should be purchased although the purple moon angel is nowhere near as finicky as the multibanded and should pick from a selection of foods including mysis, brine shrimp and dried algae, the latter being very important for long-term health.

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