InvertIntermediate care75g minimum

Derasa clam reef compatibility check

Tridacna derasa

Hardier clam option, but adult size and stability requirements are real.

Minimum tank

75 gallons

Care level

Intermediate

Reef safety

Safe

Bioload score

0.8

Stocking stage

Middle

Flow need

Moderate

Light need

High

Compatibility warnings

Grows large and needs stable chemistry.
Check adult size against the final tank, not the fish or coral at purchase size.
Add livestock slowly so the bioload and nutrient export can keep up.
Use the planner when this animal changes the tank-size, flow, lighting, or stocking plan.

Tank minimum

75 gallons

ReefCrafter uses 75 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.