| group | condition | fitness | t score | |
| attachment assay; attached sample | McCas-formate low carbon steel attached | -5.3 | -2.2 | compare |
| nutrient t1 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE | -5.3 | -3.3 | compare |
| attachment assay; attached sample | McCas-formate glass attached | -5.2 | -1.4 | compare |
| nutrient t1 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE | -5.1 | -3.5 | compare |
| attachment assay; attached sample | McCas-formate glass attached | -5.1 | -1.5 | compare |
| attachment assay; attached sample | McCas-formate glass attached | -5.1 | -1.7 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2 | -5.0 | -2.7 | compare |
| nutrient t1 | formate McAA folic dropout | -5.0 | -3.0 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -5.0 | -2.6 | compare |
| nutrient t1 | formate McAA lipolic dropout | -5.0 | -3.0 | compare |
| nutrient t1 | formate McAA p-aminobenzoic dropout | -5.0 | -3.0 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 FREE | -4.9 | -2.4 | compare |
| nutrient t1 | formate vitamin complete | -4.9 | -2.8 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 FREE | -4.9 | -2.4 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2 | -4.8 | -2.2 | compare |
| stress | Formate 50 mM hypophosphite | -4.8 | -3.4 | compare |
| nitrogen source | H2 N-free with 2g/L casaminos 10mM Ammonium chloride | -4.7 | -2.5 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2 | -4.7 | -2.1 | compare |
| nitrogen source | H2 N-free with 10mM Ammonium chloride | -4.7 | -2.2 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -4.7 | -2.1 | compare |