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Little Shop of Coral

Rainbow Acropora Tenuis

Rainbow Acropora Tenuis

$100.00 CAD
$100.00 CAD
Sale Sold out
Frag Size

Rainbow Acropora tenuis is a classic high-end SPS with layered colour that can shift from greens and yellows into pinks, reds, and blues depending on spectrum and stability. In strong light with stable parameters, it develops tight polyp extension and crisp contrast along the branches - one of those pieces that keeps getting better as it encrusts and starts to push new growth tips.

Why we love it

  • Multi-tone “rainbow” colour that intensifies as it grows in

  • Tight branching form with great polyp extension in stable systems

  • A premium SPS frag that rewards consistency and patience

Suggested parameters

  • Temperature: 24–26°C (75–79°F)

  • Salinity: 1.025–1.026 SG

  • pH: 8.1–8.4

  • Alkalinity: 7.5–8.5 dKH (stability is everything)

  • Calcium: 420–460 ppm

  • Magnesium: 1300–1400 ppm

  • Nitrate: 2–10 ppm

  • Phosphate: 0.02–0.08 ppm

Care and placement

  • Difficulty: Moderate to advanced

  • Placement: Mid to upper rockwork with strong clearance

  • Lighting: Moderate to high (acclimate slowly)

  • Flow: Moderate to high, turbulent/alternating (avoid direct blasting)

Feeding

Not required, but can improve colour and growth in nutrient-balanced systems. Fine particle foods and amino acids can be used sparingly - avoid overfeeding and keep nutrients stable.

Compatibility and spacing

  • Peaceful, but sensitive - avoid swings and keep away from aggressive corals

  • Leave room for upward growth and encrusting base

  • Best kept in stable SPS-dominant or mixed reefs with consistent alkalinity

What you are buying (1" frags)

This listing is for 1 inch frags, meaning you are purchasing one frag cut at approximately 1".

  • You will receive: 1 frag (~1") of Rainbow Acropora tenuis

  • Mounted on a frag plug (unless otherwise stated)

Colour and growth form can vary by system and may shift during acclimation due to lighting, flow, nutrient levels, and tank maturity.

View full details

LIGHT

LOW: Place coral at the bottom of the tank. Depending on the type, coral may need to be placed off sand and therefore mounted on a ceramic disc of piece of rock.

MEDIUM: Place coral at mid-range of the tank. Best placed/glued on top of a rock scape at mid-range height. 

HIGH: Place coral from mid range to just below water level. SPS coral are shallow growing so they require and are able to tolerate intense light.

FLOW

LOW: Most soft coral do well with a small, gentle pulse. There are certain corals that can even be placed in areas of indirect flow, meaning places aside a rock structure or set into a entrance to a cave style space.

MEDIUM: Many LPS types of coral prefer medium pulse current. Most Euphyllia or corals that have more tissue structure connected to their skeleton, don’t like to be in a high flow area like the direct flow of the wave pump.

HIGH: Similar to high light, SPS enjoy being in some heavy current. Most LPS and SPS that branch encrust or plate prefer high flow that simulates the top water waves.

SKILL

ENTRY: While some may say beginner level, "Entry" is a good term to be used when starting out in the world of corals and marine life. Prior to adding livestock, you want to ensure that your reef has the proper parameters including zero levels of ammonia and nitrite. Seeing traces of nitrate in your waters is a good sign - just keep them at a lower level of 2ppm to 10ppm. Maintaining correct temperature and salinity are a huge factor to stable parameters. Starting to monitor your PH, alkalinity, calcium and magnesium is a great habit to get into to keep a successful reef.

While some soft coral don’t require too much light, having a proper reef light that puts out the proper pars is very important. You'll also want to have a good amount of flow and protected rock areas, as placing corals in their happy spot is ideal for success.

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