Aquarium clams
Giant clams bring living color to the sand bed and rockwork, and they help take nutrients out of the water as they filter feed. They build a calcium-carbonate shell, so they want strong light and stable calcium and alkalinity. Each profile lists the light, water chemistry and placement a clam needs, and how hardy it is.
9 species

Asian gold clam
Corbicula fluminea2 in (5 cm)29 gal (110 L)64–84°F (18–29°C)China Clam
Hippopus porcellanus15.7 in (40 cm)106 gal (400 L)75–81°F (24–27°C)
Crocea Clam
Tridacna crocea5.9 in (15 cm)30 gal (115 L)75–81°F (24–27°C)
Derasa Clam
Tridacna derasa19.7 in (50 cm)40 gal (150 L)75–81°F (24–27°C)
Gigas Clam
Tridacna gigas47.2 in (120 cm)198 gal (750 L)75–81°F (24–27°C)
Horse Hoof Clam
Hippopus hippopus11.8 in (30 cm)40 gal (150 L)75–81°F (24–27°C)
Maxima Clam
Tridacna maxima13.8 in (35 cm)40 gal (150 L)75–81°F (24–27°C)
Noah's Clam
Tridacna noae9.8 in (25 cm)40 gal (150 L)75–81°F (24–27°C)
Squamosa Clam
Tridacna squamosa15.7 in (40 cm)40 gal (150 L)75–81°F (24–27°C)
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