CoralExpert care40g minimum

Acropora reef compatibility check

Acropora spp.

Quick answer

Acropora (Acropora spp.) is an expert-level SPS coral that needs at least 40 gallons. It is listed as reef safe; expert coral; avoid in unstable new tanks. Plan high light and high flow (placement: upper reef with strong turbulent flow).

The SPS benchmark: beautiful, demanding, and unforgiving of unstable systems.

Minimum tank
40 gallons
Care level
Expert
Reef safety
Safe
Bioload score
0.3
Stocking stage
Late
Flow need
High
Light need
High

Who it is for

Good fit for

  • ✓ Tanks of 40+ gallons at the animal's adult size.
  • ✓ Reef tanks with corals and invertebrates.

Not a fit for

  • ✕ Tanks under 40 gallons, even while it is small.
  • ✕ Keepers without experience and a long-stable system.
  • ✕ New tanks; wait until the system is about 6+ months old.
  • ✕ Tanks with soft-coral-level lighting.

Compatibility warnings

  • Expert coral; avoid in unstable new tanks.
  • Needs high light, high flow, and stable parameters.
  • Plan high PAR, strong varied flow, and stable alkalinity.
  • Treat this as late-stage livestock for most beginners.
  • Do not buy Acropora to test whether the system is ready.

Professional planning context

  • Use the 40 gallon minimum as an adult-planning floor; display length, aquascape, and existing tankmates can raise that floor.
  • Hold this entry until the system has at least 6 months of maturity or equivalent stability evidence.
  • Placement should be validated against measured PAR, turbulent flow, allelopathy/stinging distance, and future colony growth.

Tank fit and maturity gate

Tank minimum
40 gallons

ReefCrafter uses 40 gallons as the planning floor for adult size, swimming room, nutrient load, and aggression margin.

Maturity gate
6 months

This animal should wait until the tank has enough age, food web stability, or parameter history.

Care notes

Temperament
Territorial
Reef safety
Safe
Adult size
Varies
Placement
upper reef with strong turbulent flow
Diet
Photosynthetic; depends heavily on stable alkalinity, calcium, and nutrients.
Flow
High
Light
High
Bioload
0.3
Stocking stage
Late

Related species

Equipment that fits

Related reading

Questions

What size tank does acropora need?

ReefCrafter plans for at least 40 gallons, plus growth space and the stability a larger water volume gives.

Is acropora reef safe?

It is listed as reef safe in ReefCrafter's catalog. Watch for: Expert coral; avoid in unstable new tanks; Needs high light, high flow, and stable parameters.

Is acropora good for beginners?

It is rated expert care, so most beginners should add it later, after parameters have been stable for 6+ months.

How much light and flow does acropora need?

ReefCrafter lists a high light need and high flow (placement: upper reef with strong turbulent flow). In planner terms that starts around 250 PAR.