diff --git a/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java b/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
index 92ad899..cc2216b 100644
--- a/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
+++ b/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
@@ -38,6 +38,7 @@ import com.google.common.base.Enums;
 import com.google.common.collect.ArrayListMultimap;
 import com.google.common.collect.Multimap;
 
+import world.bentobox.bentobox.BentoBox;
 import world.bentobox.bentobox.util.Util;
 import world.bentobox.greenhouses.Greenhouses;
 import world.bentobox.greenhouses.data.Greenhouse;
@@ -376,27 +377,37 @@ public class BiomeRecipe implements Comparable<BiomeRecipe> {
         }
         // Center spawned mob
         Location spawnLoc = b.getLocation().clone().add(new Vector(0.5, 0, 0.5));
-        return getRandomMob()
+        BentoBox.getInstance().logDebug("Spawning at " + spawnLoc.getBlock().getType() + " " + spawnLoc);
+        getRandomMob().ifPresent(m -> {
+            BentoBox.getInstance().logDebug("Mob is " + m.mobType());
+            BentoBox.getInstance().logDebug("mobSpawnOn = " + m.mobSpawnOn());
+            BentoBox.getInstance().logDebug("Block below is " + b.getRelative(BlockFace.DOWN).getType());
+        });
+        boolean result = getRandomMob()
                 // Check if the spawn on block matches, if it exists
                 .filter(m -> Optional.of(m.mobSpawnOn())
                         .map(b.getRelative(BlockFace.DOWN).getType()::equals)
                         .orElse(true))
                 // If spawn occurs, check if it can fit inside greenhouse
                 .map(m -> {
+                    BentoBox.getInstance().logDebug("Mob is " + m);
                     Entity entity = b.getWorld().spawnEntity(spawnLoc, m.mobType());
                     preventZombie(entity);
                     return addon
                             .getManager()
                             .getMap()
                             .getGreenhouse(b.getLocation()).map(gh -> {
+                                BentoBox.getInstance().logDebug("Checking boundary");
                                 if (!gh.getInternalBoundingBox().contains(entity.getBoundingBox())) {
                                     entity.remove();
+                                    BentoBox.getInstance().logDebug("Removed");
                                     return false;
                                 }
                                 return true;
                             }).orElse(false);
                 }).orElse(false);
-
+        BentoBox.getInstance().logDebug("Result = " + result);
+        return result;
     }
 
     /**
diff --git a/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java b/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
index 0e17a42..8a4a73b 100644
--- a/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
+++ b/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
@@ -19,6 +19,7 @@ import org.bukkit.scheduler.BukkitTask;
 import org.bukkit.util.BoundingBox;
 import org.bukkit.util.NumberConversions;
 
+import world.bentobox.bentobox.BentoBox;
 import world.bentobox.greenhouses.Greenhouses;
 import world.bentobox.greenhouses.data.Greenhouse;
 import world.bentobox.greenhouses.greenhouse.BiomeRecipe;
@@ -138,14 +139,17 @@ public class EcoSystemManager {
      * @return true if mobs were spawned, false if not
      */
     boolean addMobs(Greenhouse gh) {
+        BentoBox.getInstance().logDebug("Adding mobs");
         final BoundingBox bb = gh.getBoundingBox();
         if(gh.getLocation() == null || gh.getLocation().getWorld() == null || gh.getWorld() == null
                 || !gh.getLocation().getWorld().isChunkLoaded(((int) bb.getMaxX()) >> 4, ((int) bb.getMaxZ()) >> 4)
                 || !gh.getLocation().getWorld().isChunkLoaded(((int) bb.getMinX()) >> 4, ((int) bb.getMinZ()) >> 4)){
             // Skipping addmobs for unloaded greenhouse
+            BentoBox.getInstance().logDebug("unloaded gh");
             return false;
         }
         if (gh.getBiomeRecipe().noMobs()) {
+            BentoBox.getInstance().logDebug("No mobs in recipe");
             return false;
         }
         // Check greenhouse chunks are loaded
@@ -154,6 +158,7 @@ public class EcoSystemManager {
                 int chunkX = (int)(blockX / 16);
                 int chunkZ = (int)(blockZ / 16);
                 if (!gh.getWorld().isChunkLoaded(chunkX, chunkZ)) {
+                    BentoBox.getInstance().logDebug("Chunks not loaded");
                     return false;
                 }
             }
@@ -164,19 +169,26 @@ public class EcoSystemManager {
                 .filter(e -> gh.contains(e.getLocation())).count();
         // Get the blocks in the greenhouse where spawning could occur
         List<GrowthBlock> list = new ArrayList<>(getAvailableBlocks(gh, false));
+        BentoBox.getInstance().logDebug("Entities = " + sum + " available blocks are " + list.size());
+        list.forEach(gb -> BentoBox.getInstance().logDebug(gb.block.getType()));
         Collections.shuffle(list, new Random(System.currentTimeMillis()));
         Iterator<GrowthBlock> it = list.iterator();
         // Check if the greenhouse is full
         if (sum >= gh.getBiomeRecipe().getMaxMob()) {
+            BentoBox.getInstance().logDebug("GH is full");
             return false;
         }
         while (it.hasNext() && (sum == 0 || gh.getArea() / sum >= gh.getBiomeRecipe().getMobLimit())) {
             // Spawn something if chance says so
             if (gh.getBiomeRecipe().spawnMob(it.next().block())) {
                 // Add a mob to the sum in the greenhouse
+                BentoBox.getInstance().logDebug("Spawned a mob");
                 sum++;
             }
         }
+        if (sum == 0 ) {
+            BentoBox.getInstance().logDebug("Nothing spawned");
+        }
         return sum > 0;
     }