I had 2 pom Poms and 3 seahorses together no problems, also once watched the crab crawl right over a sleeping mandarin without waking it just waving it's poms around, check out the polls, I started one asking this same question, it seems no one who answered has ever had a problem, I love these guys!! 
		
	
		
		
		
		
		
	
		
		
	
	
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