diff --git a/scripts/SimulationParameters/MicrobeStage/Compounds.json b/scripts/SimulationParameters/MicrobeStage/Compounds.json
index dc22f445c79..c0979c86914 100644
--- a/scripts/SimulationParameters/MicrobeStage/Compounds.json
+++ b/scripts/SimulationParameters/MicrobeStage/Compounds.json
@@ -4,6 +4,7 @@
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
+        "isEnvironmental": false,
         "colour": {
             "r": 0.235,
             "g": 0.627,
@@ -16,6 +17,7 @@
         "volume": 1,
         "isCloud": true,
         "isUseful": true,
+        "isEnvironmental": false,
         "colour": {
             "r": 0.6,
             "g": 0.7,
@@ -28,6 +30,7 @@
         "volume": 1,
         "isCloud": true,
         "isUseful": true,
+        "isEnvironmental": false,
         "colour": {
             "r": 0.7,
             "g": 0.0,
@@ -40,6 +43,7 @@
         "volume": 1,
         "isCloud": true,
         "isUseful": false,
+        "isEnvironmental": false,
         "colour": {
             "r": 1.0,
             "g": 0.4,
@@ -52,6 +56,7 @@
         "volume": 1,
         "isCloud": true,
         "isUseful": false,
+        "isEnvironmental": false,
         "colour": {
             "r": 0.9,
             "g": 0.9,
@@ -64,6 +69,7 @@
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
+        "isEnvironmental": false,
         "colour": {
             "r": 0.078,
             "g": 0.0,
@@ -76,6 +82,7 @@
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
+        "isEnvironmental": true,
         "colour": {
             "r": 0.0,
             "g": 0.0,
@@ -88,6 +95,7 @@
         "volume": 1,
         "isCloud": false,
         "isUseful": true,
+        "isEnvironmental": true,
         "colour": {
             "r": 1.0,
             "g": 0.0,