SEASONAL COLLECTION • All Year

🌌Galaxy Night

Deep black, metallic gold and glass-like iridescence — five plakat and halfmoon bettas selected to glow against a dark, moody aquascape.

Featured Fish in Galaxy Night

Why This Collection

Every fish in Galaxy Night carries the same wild-type trait that makes Betta splendens the most photographed freshwater fish in the hobby: iridocytes, tiny reflective cells layered under the scale that bend light into blue, green and violet flashes depending on the angle you're viewing from. Black Samurai and Black Dragon push that effect against a near-black base coat, so the shimmer reads as sparks rather than a solid colour. Super Gold and Dumbo Salamander PK trade the black base for warm metallic tones, while HM Black carries the same deep pigment out into a full 180-degree halfmoon spread. None of these are seasonal — they're bred and available year-round.

The trick most new keepers miss is that a dark, iridescent betta looks almost ordinary against a bright white background and pale gravel — the same light that should be bouncing off the scales just gets lost in glare. Flip the tank to a dark backdrop and the fish becomes the only bright thing in the frame. This collection page exists because we get asked constantly which fish photograph and display best in a moody, planted or blackwater-style setup, and these five are our honest answer, ranked by how well their colour holds under normal home lighting, not just in a breeder's studio tank.

Care & Setup Tips

Go dark on substrate, not just backdrop

Black sand (inert, aquarium-safe types like fine black quartz) outperforms black gravel for this theme — sand reflects almost no light back up into the water column, so it doesn't wash out the fish's underside the way coarse gravel can. If you already have light substrate, even a dark background film taped to the back and sides makes a bigger visual difference than most people expect, especially with Black Samurai and Black Dragon whose base colour is doing most of the work.

Light for shimmer, not for daylight

Harsh white LEDs flatten iridescence — they light the whole fish evenly, so the metallic flash disappears into general brightness. A moderate blue-tinted or dimmable white LED, especially run at 40-60% in the evening, lets the iridocytes catch light selectively as the fish moves, which is exactly the sparkle effect that makes Super Gold and HM Black look alive instead of flat. Most planted-tank LED fixtures already have a blue channel — use it.

Shoot photos at a slight downward angle

Iridescence is angle-dependent, so a straight side-on photo through the glass often misses it entirely. Shoot from slightly above the waterline looking down and across, which is closer to how the fish naturally displays iridescence to a rival. Turn off room lights and let only the tank LED light the shot — mixed colour temperatures muddy the blacks and make dark scales look grey and dull in photos instead of deep and glossy.

Keep decor sparse and dark-toned

Busy, brightly coloured decor competes with the fish for attention and breaks up the visual field that makes a halfmoon spread like HM Black's read as dramatic. A few pieces of dark driftwood, one or two anubias or java fern (both tolerate low-to-moderate light well), and open swimming space in front let the fish itself be the focal point — the same minimalist principle competition bettas are staged with for show photography.

Frequently Asked Questions

Which fish in Galaxy Night is best for a first-time betta keeper?

Black Dragon is labelled intermediate care because its metallic scale layering can be slightly more sensitive to poor water quality than a standard plakat, but Black Samurai and Super Gold are both straightforward for beginners — same core needs as any betta: a heated, filtered 5-gallon-plus tank, weekly partial water changes, and stable warm water. Super Gold is also our featured, highest-rated fish in the set if you want the safest first pick.

Will dark substrate and blue lighting stress the fish or affect their color long-term?

No — bettas don't have light-sensitivity issues at normal aquarium intensities, and a dimmable blue-tinted LED run in the evening is milder than full daylight-spectrum lighting, not harsher. If anything, constant bright white light without a day/night dim cycle is more likely to stress a betta over time than a moderate blue evening setting. Just keep a consistent light/dark schedule either way.

Can I keep more than one of these bettas in the same tank?

Not together as adult males — Betta splendens males are territorial and will fight, sometimes fatally, regardless of colour pattern. Each fish in this collection needs its own tank (5 gallons minimum, more is better) unless you're specifically building a divided or species-only community setup with one betta and peaceful tankmates like nerite snails or amano shrimp. Buying multiple fish from this set means multiple tanks, not one shared display.

Does the halfmoon tail on HM Black need different care than the plakat fish in this set?

The core water and heating requirements are identical, but HM Black's full 180-degree fin spread is more prone to fin nipping from aggressive tankmates and to tears from sharp decor edges than the shorter-finned plakat varieties. Round off or avoid sharp plastic ornaments, keep the tank single-occupant, and its fins will hold their shape and shimmer far better long-term.

Shop Galaxy Night

Dark and mysterious fish with iridescent scales that shimmer like the night sky.

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