diff --git a/scripts/SimulationParameters/MicrobeStage/Compounds.json b/scripts/SimulationParameters/MicrobeStage/Compounds.json
index 09319747445..dc22f445c79 100644
--- a/scripts/SimulationParameters/MicrobeStage/Compounds.json
+++ b/scripts/SimulationParameters/MicrobeStage/Compounds.json
@@ -71,27 +71,27 @@
         }
     },
     
-    "Oxygen": {
+    "oxygen": {
         "name": "Oxygen",
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
         "colour": {
-            "r": 0.078,
+            "r": 0.0,
             "g": 0.0,
-            "b": 0.078
+            "b": 1.0
         }
     },
     
-    "CarbonDioxide": {
+    "carbondioxide": {
         "name": "Carbon Dioxide",
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
         "colour": {
-            "r": 0.078,
+            "r": 1.0,
             "g": 0.0,
-            "b": 0.078
+            "b": 0.0
         }
     }
 }