My Ph keeps crashing does anyone have any ideas 
its done it 3 times since yesterday. 
I had to treat the tank with ich attack for the last 2 weeks JOY! 
and thats the main thing that's changed. 
 
I've done 3 15 percent waterchanges in a week and a half . 
yesterday after I finished one I noticed my chromis acting wierd. 
Ph 7.2 
added marine buffer and marine builder 
ph 8.4 
checked again today 
ph.7.8 
 
ammonia zero 
nitrates zero 
nirates zero 
 
I feel like im a really really bad fish keeper  
ANY ideas whats causing this 
 
29 gallons 
temp 27 
35 lbs live rock 
15 lbs live sand 
various inverts  
2 fish 
salinity 35 
		
	
		
		
		
		
		
	
		
		
	
	
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