Dwarf Parrot Wrasse (Cirrhilabrus rubriventralis) Family: Labridae
 
If I was asked to name one group of fish which featured a wealth of attributes such as beautiful coloration, tireless activity from dawn to dusk, ease of feeding, a generally peaceful nature, compatibility with invertebrates and disease resistance, I would lay odds that the questioner would not be expecting a realistic reply.
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Harlequin Tusk Fish (Choerodon fasciatus) The harlequin tusk (Choerodon fasciatus) belongs to the family of wrasses. It has orange mottled bands. Each band is etched by delicate blue-violet ribbons. Anteriorly, between the orange bands is silvery-white, turning to dark grey-black posteriorly. With big protruding tiger-like fangs, the tusk looks very menacing indeed, capable of doing harm to other tank mates.

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Clown Tang | Acanthurus lineatusThe Clown Tang (Acanthurus lineatus) is one of the most striking members of the Tangs / Surgeons family (Acanthuridae), being one of the most aggressive and can be challenging to keep and care for. It is also known in the trade as the Lined Surgeon and Pyjama Tang.

Sooner or later as a reef tank hobbyist you're going to want one of these beauties. They are reef safe and live harmoniously with corals and invertebrates.

Marine Fish - Tangs & Surgeonfish

Clown Trigger Fish

One type of marine aquarium never fails to create a stir, the fish-only tank containing BIG fish! The sight of large slices of brightly coloured piscine flesh cruising around an equally spacious aquarium is enough to make anyone's heart beat a little quicker. Such displays are normally the province of the public aquarium, but within the confines of a domestic setting the whole thing can be replicated on a somewhat smaller scale with equally stunning results.

General Saltwater - Big Fish & Aquariums

Blood Shrimps (Lysmata debelius) Most of my regular readers will already be aware that, on the whole, I do not condone small marine tanks; that is, tanks with a nett volume of less than 20 gallons (91 litres). They are usually very unstable as far as water parameters are concerned and subsequently exert considerable stress on fish and/or invertebrates. They are also extremely restricting for livestock and consequently prone to overstocking, especially where fish are involved.

Having said that, there is a way that the marine enthusiast can set-up a 'micro' marine aquarium housing only shrimps! Over recent years, I have been experimenting with 3-5 gallon marine aquaria containing various species of tropical and temperate shrimp and crabs. I am pleased to report that all tanks were successful and no livestock was lost.

Marine Invertebrates - Shrimps

Cyphotilapia frontosa A pair of Cyphotilapia frontosa from the authors aquarium.

One of the most beautiful and distinctive Cichlids of Lake Tanganyika has to be C. frontosa. There are two colour morphs of this species, a Berundi morph, which has six vertical bars and a Tanzanian morph, which has seven or even eight bars when they are young, although in my experience I have only ever encountered the Berundi morph. The males develop a huge lump of fat on the top of its head making this a very distinctive occupant to any aquarium.

Freshwater Fish - Cichlids

Random Aquarium Topics

ConservationWorking Together To Keep Coral Reefs Alive
The Coral Reef Alliance

Dear Friends of CORAL, There is plenty of bad news about coral reefs this year, but here is some good news. After years of work by lots of different organizations and individuals, President Clinton has issued an Executive Order creating the Northwestern Hawaiian Islands Coral Reef Reserve, the single largest nature reserve ever established in the United States.


ScorpionfishLionfish | Pterois volitans
All Tropical Fish
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The Volitans Lionfish is to me one of the most fascinating of marine fishes. They have an almost royal presence about them in almost any aquarium. If you like fish that swim all over the tank then this is not the fish for you, as they tend to be at home for hours in one spot without moving much at all (Usually they can be found perched on top of a plant or near the skimmer/water intake for your tanks filtration system).


Marine PestsBrown or Planaria Flatworms - Convolutriloba retrogemma
Nick Dakin
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Question: How do you turn an aquarium brown, that was once full of colour?
Answer: Introduce a few brown flatworms! As unlikely as this may sound to those who have no experience of this menace, it is alarmingly true. Although flatworms of this species are only a few millimetres in length they can reproduce both sexually and asexually, meaning that it takes only one specimen to ultimately infect a whole tank. Given the right conditions, the flatworms go for all out reproduction and soon cover literally everything that does not move, inclu [ ... ]


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