ATCC Medium 957
| Glass-distilled water | 250.0 ml |
| Seawater | 750.0 ml |
| MgSO4·7H2O | 0.04 g |
| CaCl2·2H2O | 0.02 g |
| NaNO3 | 0.75 g |
| K2HPO4·3H2O | 0.02 g |
| Citric acid | 3.0 mg |
| Ferric ammonium citrate | 3.0 mg |
| EDTA (disodium potassium salt) | 0.5 mg |
| NaCO3 | 0.02 g |
| Trace metals A-5 | 1.0 ml |
| Noble agar (if needed) | 10.0 g |
Trace metal mix A5:
| H3BO3 | 2.86 g |
| MnCl2·4H2O | 1.81 g |
| ZnSO4·7H2O | 0.222 g |
| NaMoO4·2H2O | 0.39 g |
| CuSO4·5H2O | 0.079 g |
| Co(NO3)2·6H2O | 49.4 mg |
| Distilled water | 1.0 L |
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