I have a 6 inch royal pleco and for some reason he seems really stressed out and his eyes are sinking in. I have had him in the same tank for a year and a half. Although I did have one before do the same thing and it died about a month later. I didn't know if there was anything that anyone would know about this. Thanks in advance for any help.
				
			 
	 
	 
		  
 
		 
 
		