===================================================================
--- original.js
+++ change.js
@@ -393,26 +393,21 @@
 			self.destroy();
 		}
 	};
 });
-var HealingPlant = AquariumDecorator.expand(function () {
-	var self = AquariumDecorator.call(this);
+var HealingPlant = Container.expand(function () {
+	var self = Container.call(this);
 	var plantGraphics = self.createAsset('healingPlant', 'Healing Plant Graphics', 0.5, 1);
-	self.healingRate = 0.1;
-	self.interactWithFish = function (fish) {
-		if (fish.size < self.size && self.distanceTo(fish) < 100) {
-			fish.health = Math.min(fish.health + self.healingRate, 100);
-			fish.isHidden = true;
-			fish.alpha = 0.5;
-		} else {
-			fish.isHidden = false;
-			fish.alpha = 1.0;
-		}
-	};
+	self.healingRate = 0.05;
 	self.on('tick', function () {
-		var nearbyFish = self.getNearbyFishWithinRange(100);
-		nearbyFish.forEach(self.interactWithFish);
+		var nearbyFish = self.getNearbyFishWithinRange(50);
+		nearbyFish.forEach(function (fish) {
+			if (fish.health < 100) {
+				fish.health = Math.min(fish.health + self.healingRate, 100);
+			}
+		});
 	});
+	return self;
 });
 var TreasureChest = InteractiveElement.expand(function () {
 	var self = InteractiveElement.call(this) || this;
 	var chestGraphics = self.createAsset('treasureChest', 'Treasure Chest Graphics', 0.5, 0.5);
@@ -428,26 +423,30 @@
 		}
 	};
 	LK.setInterval(self.performInteraction, 10000);
 });
-var HealingAlgae = Container.expand(function () {
+var Algae = Container.expand(function () {
 	var self = Container.call(this);
-	var algaeGraphics = self.createAsset('healingAlgae', 'Healing Algae Graphics', 0.5, 0.5);
-	self.growthRate = 0.02;
-	self.nutrition = 10;
-	self.healingAmount = 2;
+	var algaeGraphics = self.createAsset('algae', 'Algae Graphics', 0.5, 1);
+	self.growthRate = 0.01;
+	self.nutritionValue = 5;
+	self.healthValue = 2;
 	self.on('tick', function () {
 		algaeGraphics.scale.x += self.growthRate;
 		algaeGraphics.scale.y += self.growthRate;
-		self.nutrition += self.growthRate * 10;
-		if (algaeGraphics.scale.x > 5) {
-			self.destroy();
+		if (algaeGraphics.scale.x > 3) {
+			algaeGraphics.scale.x = 3;
+			algaeGraphics.scale.y = 3;
 		}
 	});
 	self.consume = function (fish) {
-		fish.health = Math.min(fish.health + self.healingAmount, 100);
-		self.destroy();
+		if (self.distanceTo(fish) < 50) {
+			fish.hunger = Math.min(fish.hunger + self.nutritionValue, 100);
+			fish.health = Math.min(fish.health + self.healthValue, 100);
+			self.destroy();
+		}
 	};
+	return self;
 });
 var MovingFood = Container.expand(function () {
 	var self = Container.call(this);
 	self.speed = 1;
@@ -580,33 +579,28 @@
 	};
 	return self;
 });
 var PredatorFish = Fish.expand(function () {
-	var self = Fish.call(this) || this;
+	var self = Fish.call(this);
 	self.predatorGraphics = self.createAsset('predatorFish', 'Predator Fish Graphics', 0.5, 0.5);
-	self.speed = (Math.random() * 0.5 + 1.5) / 3;
-	self.huntRange = 300;
-	self.hunt = function (prey) {
-		if (self.distanceTo(prey) < self.huntRange) {
-			self.targetRotation = Math.atan2(prey.y - self.y, prey.x - self.x);
-			self.directionChangeTime = LK.ticks;
-			self.directionChangeInterval = 3;
-			prey.health -= 2;
-			if (prey.health <= 0) {
-				prey.die();
-			}
-		}
-	};
-	self.move = function () {
+	self.speed = 2;
+	self.huntRange = 200;
+	self.on('tick', function () {
 		var nearbyPrey = self.getNearbyFish().filter(function (fish) {
 			return fish.size < self.size && fish.health > 0;
 		});
 		if (nearbyPrey.length > 0) {
-			self.hunt(nearbyPrey[0]);
+			var prey = nearbyPrey[0];
+			if (self.distanceTo(prey) < self.huntRange) {
+				self.targetRotation = Math.atan2(prey.y - self.y, prey.x - self.x);
+				prey.health -= 1;
+				if (prey.health <= 0) {
+					prey.destroy();
+				}
+			}
 		}
-		Fish.prototype.move.call(self);
-	};
-	LK.setInterval(self.move, 500);
+	});
+	return self;
 });
 var RestingBehavior = Container.expand(function () {
 	var self = Container.call(this);
 	self.isResting = false;
@@ -1467,16 +1461,17 @@
 	};
 });
 var BubbleGenerator = Container.expand(function () {
 	var self = Container.call(this);
-	self.bubbleRate = 500;
+	self.bubbleRate = 1000;
 	self.createBubble = function () {
 		var bubble = new Bubble();
 		bubble.x = Math.random() * 2048;
 		bubble.y = 2732;
-		self.addChild(bubble);
+		LK.stageContainer.addChild(bubble);
 	};
 	LK.setInterval(self.createBubble, self.bubbleRate);
+	return self;
 });
 var RisingBubble = Container.expand(function () {
 	var self = Container.call(this);
 	self.liftSpeed = 3;