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

DecorCraving Caves - Marine Aquarium Decor
Nick Dakin
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One of the greatest pleasures of marine fishkeeping has always been to replicate as accurately as possible the authentic environment of a particular range of livestock, thus enjoying perfectly natural behaviour. Depriving fish and invertebrates of a similar environment from which they were collected can create stress, leading to strange behaviour patterns, disease, and in extreme cases death!


CichlidsLabidochromis caeruleus
All Tropical Fish
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Labidochromis caeruleus is another example of the splendour to be found in Lake Malawi. There are a number of colour varieties of Labidochromis caeruleus - ranging from yellow, blue to white. This specimen pictured is a subdominant male and thus not showing off his true colours. Like most cichlids of this type they tend to be aggressive towards other members of the family.


FiltrationUndergravel Filters
Nick Dakin
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Q) How do I go about setting up a basic undergravel filter for a marine aquarium? A) Over the last ten years or so, marine filtration has advanced in leaps and bounds, leading many to believe that there is no future for the technique that sustained marine livestock for several generations.......the undergravel filter. Such beliefs are, of course, highly misleading, for undergravel filters work very well and are an excellent starting point for newcomers to the hobby; especially those whose budget will not stretch to all the high-tech gadgetry now available. Having said that, we cannot ignore the basics of good marine aquarium husbandry a [ ... ]


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