Marine Water
Entacmaea quadricolor, its fame comes not only from its color or from its symbiosis with clownfish, but because it combines three very powerful things: aesthetics, behavior and the ability to multiply by division.
Sinularia flexibilis ceases to seem capricious and begins to show what it really is: a stable, expressive coral that is much more logical than it appears.
Heteractis crispa is one of the classic host anemones of clownfish. This article is designed to help you understand: accurate identification, health indicators, useful biology, and practical applications in aquariums.
Some corals impress with their structure. This one impresses with its texture, volume, and color. The so-called «Acan Lord» has gained a reputation as an attractive and relatively easy-to-grow coral.
The Siganus vulpinus is often sold as a «pretty fish that also eats algae.» That’s a convenient phrase… and a dangerous one. This species actually works best when understood as an ecological tool within the aquarium.
Anampses femininus in marine aquariums: AtlasReef guide Official translations » Anampses femininus: the blue-striped orange tamarin that demands a serious
This species is shy, peaceful, and useful for stirring up substrate. Its currently accepted name is «Koumansetta rainfordi,» which helps to understand that it is not simply a burrowing goby, but a microhabitat fish.
Gobiodon citrinus is a goby associated with branching corals and its well-being depends on being able to lean on, fit in and live within a protective geometry.
This tiny, spectacular goby rarely fails due to color or basic feeding requirements, but rather due to temperature. The key takeaway: it’s a species that prefers cooler water than most domestic tropical reef fish.
Opistognathus aurifrons is not just another sandfish. It is a Caribbean jawfish whose biology revolves around a stable burrow, a legible environment, and an uneventful routine.
Elacatinus multifasciatus is tiny, shy, and highly dependent on context: live rock, calm tankmates, and small but real meals.
Valenciennea sexguttata is an elegant, useful benthic goby, but it only truly shines when the aquarium is designed from the substrate upward: functional sand, stable shelter, and real access to food.
Signigobius biocellatus wins aquarists with looks and fails because of context. It needs useful substrate, real maturity, and patient feeding work.
Chelmon rostratus is one of the most striking butterflyfish in the marine hobby. Its elongated snout, deep body, and yellow stripes make it unmistakable.
Chelmon rostratus is one of the most striking butterflyfish in the marine hobby. Its elongated snout, deep body, and yellow stripes make it unmistakable.
The Forcipiger flavissimus is one of the most elegant butterflyfish in the marine hobby. Its slender silhouette, elongated snout, and intense yellow coloration make it unmistakable.
Antennarius maculatus (warty frogfish): complete guide to camouflage, feeding, and care Official translations » AtlasReef · Complete Marine Guide Antennarius
Durante años, criar peces marinos «difíciles» sonó a sueño de laboratorio. Hoy ya no. El Yellow Tang dejó de ser solo un hito científico; el Blue Tang dejó de ser «la promesa del futuro».
The razorfish is the kind of species you should not buy on impulse… but you should know. Because it reminds you of a very useful truth in this hobby: not everything spectacular is meant for a standard aquarium.
Choerodon fasciatus (Harlequin Tuskfish) — complete AtlasReef guide Official translations » AtlasReef · Marine monograph Choerodon fasciatus — Harlequin Tuskfish
The fireworm is not just «a worm with bristles.» It is a polychaete with a very specific morphology, a real ecological role, and a reputation within the hobby that is larger than life.
El Acreichthys tomentosus became famous for a very specific reason: its potential to help control Aiptasia in reef aquariums.
It has an expressive face, curious behavior and real presence, but also powerful teeth, a demanding diet and a size that is far too often underestimated.
This fish is not just another one at AtlasReef. It carries emotional weight, history, and symbolism. If this fish had to be explained in a single sentence, it would be this: it lives in the sand, but not «on» the sand; it lives through the sand.
Synchiropus splendidus (Mandarin Fish) — Complete Pro Guide | AtlasReef Official translations » AtlasReef · Complete marine guide Synchiropus splendidus
Ostracion cubicus is one of the most recognisable boxfish in the hobby. As a juvenile it’s a genuine showstopper: intense yellow, black dots, dice-like shape and a presence impossible to ignore.
In the trade it is prized for its white facial mask, the dark contrast of the body and that sleek profile that brings visual elegance to the reef.
Official translations » AtlasReef · Premium species guide Zebrasoma gemmatum — Gem Tang ⏱ Lectura: ~12 min 📅 March 2026
Powder Blue Tang is one of the most spectacular surgeonfish in the hobby and, at the same time, one of the species that fails most often when its care is oversimplified.
Online, the Sohal is often described as «a beautiful but aggressive surgeonfish». In a well-designed aquarium, it can become the dominant fish and remain impressive for years.
The Achilles tang is not a difficult fish by chance. It is a species from exposed oceanic reefs, with powerful flow and extreme oxygenation.
A fish that fills the tank with calm, not with movement. The pajama cardinalfish brings quiet presence, an unmistakable pattern, and manageable care.
