diff --git a/bubble-server/src/main/java/bubble/cloud/compute/ec2/AmazonEC2Driver.java b/bubble-server/src/main/java/bubble/cloud/compute/ec2/AmazonEC2Driver.java
index e5554e49..7dfda1d5 100644
--- a/bubble-server/src/main/java/bubble/cloud/compute/ec2/AmazonEC2Driver.java
+++ b/bubble-server/src/main/java/bubble/cloud/compute/ec2/AmazonEC2Driver.java
@@ -4,6 +4,7 @@
  */
 package bubble.cloud.compute.ec2;
 
+import bubble.cloud.compute.ComputeNodeSize;
 import bubble.cloud.compute.ComputeServiceDriverBase;
 import bubble.cloud.shared.aws.BubbleAwsCredentialsProvider;
 import bubble.model.cloud.BubbleNode;
@@ -15,6 +16,7 @@ import com.amazonaws.services.ec2.AmazonEC2;
 import com.amazonaws.services.ec2.AmazonEC2ClientBuilder;
 import com.amazonaws.services.ec2.model.*;
 import lombok.Getter;
+import lombok.NonNull;
 import lombok.extern.slf4j.Slf4j;
 import org.cobbzilla.util.http.HttpRequestBean;
 import org.cobbzilla.util.http.HttpResponseBean;
@@ -88,10 +90,11 @@ public class AmazonEC2Driver extends ComputeServiceDriverBase {
         return nodes;
     }
 
-    @Override public BubbleNode start(BubbleNode node) throws Exception {
+    @Override public BubbleNode start(@NonNull BubbleNode node) throws Exception {
+        final ComputeNodeSize size = config.getSize(node.getSize());
 
         RunInstancesRequest runInstancesRequest = new RunInstancesRequest().withImageId(config.getConfig("imageId"))
-                .withInstanceType(config.getConfig("instanceType"))
+                .withInstanceType(size.getInternalName())
                 .withMinCount(MIN_COUNT)
                 .withMaxCount(MAX_COUNT)
                 .withKeyName(node.getUuid())
@@ -135,12 +138,14 @@ public class AmazonEC2Driver extends ComputeServiceDriverBase {
         return node;
     }
 
-    @Override public BubbleNode cleanupStart(BubbleNode node) throws Exception {
+    @Override public BubbleNode cleanupStart(@NonNull BubbleNode node) throws Exception {
         deleteEC2KeyPair(node);
         return node;
     }
 
     @Override public BubbleNode stop(BubbleNode node) throws Exception {
+        deleteEC2KeyPair(node); // just in case
+
         if (!node.hasTag(TAG_INSTANCE_ID)) {
             throw notFoundEx(node.id());
         }
@@ -160,7 +165,7 @@ public class AmazonEC2Driver extends ComputeServiceDriverBase {
         return node;
     }
 
-    @Override public BubbleNode status(BubbleNode node) throws Exception {
+    @Override public BubbleNode status(@NonNull BubbleNode node) throws Exception {
         final List<BubbleNode> found = listNodes();
         if (found.isEmpty()) {
             return node.setState(BubbleNodeState.stopped);
@@ -178,7 +183,7 @@ public class AmazonEC2Driver extends ComputeServiceDriverBase {
         return node;
     }
 
-    private void deleteEC2KeyPair(BubbleNode node) throws Exception {
+    private void deleteEC2KeyPair(@NonNull BubbleNode node) throws Exception {
         if (node.hasTag(TAG_SSH_KEY_ID)) {
             DeleteKeyPairRequest request = new DeleteKeyPairRequest()
                     .withKeyName(node.getUuid());
diff --git a/bubble-server/src/main/resources/models/defaults/cloudService.json b/bubble-server/src/main/resources/models/defaults/cloudService.json
index 86c72024..37994b1f 100644
--- a/bubble-server/src/main/resources/models/defaults/cloudService.json
+++ b/bubble-server/src/main/resources/models/defaults/cloudService.json
@@ -275,8 +275,12 @@
         "name": "us-east-1", "description": "US East (N. Virginia)",
         "location": {"country": "US", "lat": "37.926868", "lon": "-78.024902"}
       }],
+      "sizes": [
+        {"name": "small", "type": "small", "internalName": "t2.micro", "vcpu": 1, "memoryMB": 1024, "ssdGB": 0},
+        {"name": "medium", "type": "medium", "internalName": "t2.small", "vcpu": 1, "memoryMB": 2048, "ssdGB": 0},
+        {"name": "large", "type": "large", "internalName": "t2.medium", "vcpu": 2, "memoryMB": 4096, "ssdGB": 80}
+      ],
       "config": [
-        {"name": "instanceType", "value": "{{INSTANCE_TYPE}}"},
         {"name": "imageId", "value": "{{IMAGE_ID}}"},
         {"name": "group", "value": "{{EC2_GROUP}}"}
       ]
diff --git a/bubble-server/src/test/resources/models/system/cloudService.json b/bubble-server/src/test/resources/models/system/cloudService.json
index f5019223..fcd53cd6 100644
--- a/bubble-server/src/test/resources/models/system/cloudService.json
+++ b/bubble-server/src/test/resources/models/system/cloudService.json
@@ -243,8 +243,12 @@
 		"name": "us-east-1", "description": "US East (N. Virginia)",
 		"location": {"country": "US", "lat": "37.926868", "lon": "-78.024902"}
 	  }],
+      "sizes": [
+        {"name": "small", "type": "small", "internalName": "t2.micro", "vcpu": 1, "memoryMB": 1024, "ssdGB": 0},
+        {"name": "medium", "type": "medium", "internalName": "t2.small", "vcpu": 1, "memoryMB": 2048, "ssdGB": 0},
+        {"name": "large", "type": "large", "internalName": "t2.medium", "vcpu": 2, "memoryMB": 4096, "ssdGB": 80}
+      ],
       "config": [
-        {"name": "instanceType", "value": "t2.micro"},
         {"name": "imageId", "value": "ami-0080e4c5bc078760e"},
         {"name": "group", "value": "sg-id"}
       ]},