| group |  condition |  fitness |  t score |    | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE |  -2.7 |  -15.2 |   compare | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE |  -2.2 |  -14.1 |   compare | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE |  -1.9 |  -13.6 |   compare | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE |  -1.6 |  -7.2 |   compare | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE |  -1.1 |  -6.7 |   compare | 
 | nutrient t2 |  H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE |  -1.1 |  -6.7 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE |  -1.1 |  -6.4 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE |  -1.0 |  -5.7 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE |  -0.9 |  -5.8 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE |  -0.9 |  -5.6 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE |  -0.9 |  -5.3 |   compare | 
 | nutrient t1 |  formate McAA thiamine dropout |  -0.9 |  -5.9 |   compare | 
 | nitrogen source |  Formate N-free with 2mM Adenosine |  -0.8 |  -4.7 |   compare | 
 | nitrogen source |  Formate N-free with 2mM Adenosine |  -0.8 |  -3.6 |   compare | 
 | nutrient t1 |  formate McAA thiamine dropout |  -0.8 |  -5.3 |   compare | 
 | nutrient t1 |  formate McAA thiamine dropout |  -0.8 |  -5.5 |   compare | 
 | nutrient t1 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE |  -0.7 |  -5.7 |   compare | 
 | stress |  McCas_formate_complete sodium nitrite 0.125 mM |  -0.7 |  -4.7 |   compare | 
 | nutrient t1 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE |  -0.7 |  -5.0 |   compare | 
 | nutrient t2 |  Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE |  -0.7 |  -4.8 |   compare |