thanks all, that's a good idea.  unfortunatly, any zuchninni I put in the tank would be immediatly gobbled up by the bala sharks.  They LOVE it.  that's a dilema that I haven't figured out the answer to yet.  How to feed the BN pleco's zuchninni without the sharks getting to it first and eating it.
				
			 
	 
	 
 
		