−22%
Expert
Super Red Melon Discus (Symphysodon spp.)
26–30°C · pH 6–7 · 300L
£72.99£93.99
Blue Diamant discus need a little extra room — 275 L minimum. Peaceful, expert care, around 18 cm, soft water at 26-30C, pH 5-7.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Symphysodon aequifasciatus
Save when buying multiple fish. Each quantity is one fish; sex and pair formation are not guaranteed unless the selected variant explicitly states them.
Blue Diamant discus need a little extra room — 275 L minimum. Peaceful, expert care, around 18 cm, soft water at 26-30C, pH 5-7.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Keep the king of the aquarium — Discus Fish are striking South American cichlids for experienced keepers. Soft warm water, group living, and patience required. UK delivery available.
Maintain these water conditions for optimal health and vibrant colors
Start with the tank, because this strain asks for more of it than most: the Blue Diamant's record sets the minimum aquarium at 275 litres — a step up from the 250-litre figure typical across our discus range. If you can offer that volume, you get one of the cleanest expressions of blue in the hobby, exactly as the Diamant name suggests, carried mid-water on the classic round discus form.
From there the requirements read like a discus keeper's standard drill, executed without shortcuts: 26–30 °C, pH between 5 and 7, hardness within 0–10 dGH, and the patience to keep all three steady. The strain is rated Expert for care. Meet the standard and an 18 cm adult with up to a decade of life settles in as the defining fish of the aquarium.
Diet is carnivore/omnivore — meaty foods at the core, variety around the edges. Companions should be soft-water and softly mannered: other discus, cardinal tetras, rummy-nose tetras, Corydoras catfish, Otocinclus and peaceful dwarf cichlids. The record draws hard lines against aggressive cichlids, fin-nipping barbs, large predators, fast boisterous fish, coldwater species and very hard-water fish.
There is a quiet logic to that larger volume requirement: more water means slower change, and slower change is precisely what an Expert-rated softwater fish needs from its environment. Treat the 275-litre figure as the entry ticket rather than a target to negotiate down. The FAQ further down this page covers feeding, acclimatisation, breeding difficulty and community questions in detail.
The honest checklist: a 275-litre-plus aquarium, soft water on tap or the means to make it, and a maintenance habit you will not break. Tick all three boxes with confidence and the Blue Diamant is about as good as blue ever gets in a home aquarium. Each fish is dispatched by licensed live-animal courier and covered by our live arrival guarantee.
26–30°C · pH 6–7 · 300L
28–30°C · pH 6–7 · 250L
26–30°C · pH 5–7 · 250L
28–30°C · pH 6–7 · 250L
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26–30°C · pH 5–7 · 250L
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24–28°C
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28–30°C · pH 5.5–7.5 · 300L
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24–28°C · pH 8–9 · 300L