Majestic/Bluegirdled Angelfish - Euxiphipops navarchusLike most other marine angelfish this species is another true beauty. One could say that it runs in the family. Adult and juvenile Majestic Angels (Euxiphipops navarchus) also known as the Bluegirdled Angel differ greatly in coloration. This above pictured specimen has begun its transformation into the adult color pattern. A complete juvenile has no orange color at all and the electric blue bands extend into the dorsal fin. The adults are bright orange with many blue dots in the mid-section of the body. The dorsal fin and tail are fireball orange with an iridescent blue border edging. Its face also turns bright orange from below the eye and extending along the gill plates towards the anal fins.

(Finally) A How-To on Angelfish Reef AquariumsIn creating a truly sustainable and enduring marine environment, it’s not uncommon for a reef aquarium owner to feel suddenly besieged. Looking at all the filtration setups, pumps, bubble machines, heaters, coolers, fish tank stands and fish tanks out there – it’s easy to get knocked back on your heels. If only someone could consolidate the dos-and-don’ts of reef tank maintenance. Then maybe frazzled aquarists could get some rest at night. Well here to diminish those dark circles, your very own lullaby: an Ode to Angelfish Reef Aquarium maintenance.

Investing in coral reef aquariums is a growing trend for aquarists everywhere for good reason. Like a moving piece of art pulsing with the colors of a pastel sunset, these stunning, living biomes, bubble with life and make a great aesthetic addition to any home.


Flame Angelfish | Centropyge loriculusSaltwater fish really have to compete with each other for attention. When just about everything in the tank has bright colors, bizarre tentacles, elaborate fins, or dangerous spines, simply being beautiful isn’t going to cut it.
One fish that doesn’t have to try very hard is the flame angelfish. These vibrant fish have an almost unnaturally intense coloration that’s reminiscent of the rising sun. Their intense red is contrasted by an neon blue along their back fin. It looks as though flame leapt off the head of a match, grew a set of gills, and then started swimming through your fish tank.


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

GobiesSaltwater Gobies - Go For A Goby
Nick Dakin
article thumbnail

Family: Gobiidae

To the casual observer, gobies may not initially be an overly attractive prospect for the marine aquarium; but look a little closer. This extremely large family of fish (and there are well in excess of 1,500 species in both salt and freshwater environments) contains some of the most appealing and adaptable species available to the hobbyist.

Water QualityWater Quality In Marine Systems
All Tropical Fish

Below is a guide to what your general water quality parameters should be. Aquariums with poor water quality will cause inhabitants to become more prone to disease. Environmental Parameters Fish Only Systems temperature 24°C to 27°Csalinity 1.022 to 1.026, whatever your salinity in this range, being constant is most importantpH 8.3ammonia 0 ppm, may increase during feeding, but should drop to 0 ppm within 2-3 hoursnitrite 0 ppm, may increase during feeding, but should drop to 0 ppm within 2-3 hoursnitrate up to about 50 ppm, but have seen healthy live stock  [ ... ]

Common ProblemsThe Problem Top Fifteen
Nick Dakin
article thumbnail

An Article Discussing The Fifteen Most Common Problems In The Tropical Marine Tank. In the main, marine fishkeeping is not difficult. But common problems do occur from time to time and although these tend to be of an elementary nature, a significant number of aquarists find difficulty in resolving them unless they have definite and reliable guidelines to refer to. What follows is an outline of the fifteen most common problems I have encountered during my years in the marine fishkeeping hobby and a guide as to how to resolve them.

More Articles