Date Description Total Hardness CaCO3 Mg GH KH Fe NO3   K Calibrate pH Probe? Notes?
Initial 140 100 40              
03/04/99 Water change (50 gal std) added 2 tsp CaCO3, 1/2 tsp MgSO4, 3 Dupla tabs 100 80 20   2.5 0.10       Dupla products
03/21/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 3 tabs 100 80 20 7.0 2.5 0.05 1      
04/05/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 3 tabs 100 80 20              
04/20/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1 tsp NaHCO3, 4 tabs 100 80 20 4.0 2.0   1      
05/02/99 Water change added 3 tsp CaCO3, 2 tsp MgSO4, 4 tabs 100 80 20   3.0 0.10        
05/16/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1/2 tsp NaHCO3, 3.5 tabs 120 80 40   2.5   1      
05/30/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 3.5 tabs                    
06/13/99 Water change added 3 tsp CaCO3, 2 tsp MgSO4, 3.5 tabs 100 80 20   2.0 0.10 3      
06/27/99 Water change added 2 tsp CaCO3, 1.5 tsp MgSO4, 3 tabs                    
07/11/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1 tsp NaHCO3, 4 tabs 120 80 40   1.5 0.10 4   Yes added 18 rainbow fish
07/22/99 Added 1 tbl NaHCO3         2.0   5     KH dropped to 1.0
07/25/99 Water change added 3 tsp CaCO3, 1/2 tsp MgSO4, 4 tabs 120 80 40   2.0 0.10 5     Cleaned skimmers
08/08/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 85ml TMG       5.0     5 0   switched to TMG
08/13/99 6 tsp NaHCO3, 40 ml TMG         3.0     3   KH dropped to 1.0
08/18/99 Water change added 4 tsp CaCO3, 1 tsp MgSO4, 75ml TMG 120 80 40 4.0 3.0          
08/26/99 Added 50ml TMG                    
08/30/99 Added 1.5 TBL NaHCO3, 1/2 tsp KNO3         2.0 0.20 7 3    
09/05/99 Water change added 2 tsp CaCO3, 75ml TMG           0.20 8      
09/11/99 Added 1 tsp KNO3, 1.5 tsp NaHCO3, 50ml TMG                    
09/19/99 Water change added 3 tsp CaCO3, 1/2 tsp MgSO4, 75 ml TMG 100 60 40 5.0 2.0 0.10 10 6    
09/31/99 Added 1 tbl NaHCO3                   KH dropped to 1.5
10/03/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 75 ml TMG                    
10/07/99                   y, off by 0.21 at 7  
10/19/99 Added 50ml TMG                    
10/21/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 50ml TMG                    
10/27/99   100 80 20     0.20 7 3    
11/14/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 75ml TMG                    
12/05/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 75ml TMG                    
12/19/99 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1/2 tsp KNO3, 75ml TMG 100 80 20 5.0 2.5 0.10 5      
12/28/99                   Replaced probe  
12/29/99                   y, off by 0.44 at 7  
01/08/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1/2 tsp KNO3, 75ml TMG                    
01/21/00 Added 2 tsp NaHCO3                    
01/23/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1 tbsp NaHCO3, 75ml TMG                    
02/06/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4. 1 tsp KNO3, 100 ml TMG 100     5.0 3.0   3 2    
02/15/00 Added 1.5 tbls NaHCO3, 100ml TMG                   KH dropped to 1.0
02/27/00 Water change added 1 tsp CaCO3, 1/2 tsp MgSO4, 1 tsp KNO3, 75ml TMG 120 80 40     0.20 7 6    
03/10/00 Added 1 tsp NaHCO3         1.5          
03/12/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 1 tsp KNO3, 100ml TMG         2.0       y, off by .04  
03/29/00 Added 1/2 Tbl NaHCO3, 75 ml TMG                    
04/02/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 100ml TMG                    
04/16/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 100ml TMG                    
05/07/00 Water change added 2 tsp CaCO3, 1/2 tsp MgSO4, 100ml TMG                    
05/21/00 add 1 tbl NaHCO3, 75ml TMG                    
05/28/00 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG 120 80 40 5.0 2.5 0.20 7 8    
06/18/00 Water change added 4 tsp CaCO3, 1/2 tsp MgSO4, 1/4 tsp KNO3, 100ml TMG                 y, very close  
07/16/00 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG 120 80 40   3.0 0.10 10 8    
8/6/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG                    
8/20/2000 Water change added 6 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG       3.0 2.0          
9/15/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG                 y  
10/17/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG       5.0 2.5          
10/29/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp NaHCO3, 150ml TMG 140 100 40     0.10 10 2    
11/11/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp KNO3, 100ml TMG                    
11/25/2000 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp KNO3, 100ml TMG 120 80 40     0.20 10      
12/17/2000 Water change added 5 tsp CaCO3, 1/2 tsp MgSO4, 1 tsp NaHCO3, 100ml TMG                    
1/1/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 100ml TMG 140 100 40     0.10 20 6    
1/10/2001 Added 2 tsp K2SO4                    
1/15/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp K2SO4, 100ml TMG 140 100 40     0.10 10 10 y, off by 0.02  
1/28/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp K2SO4, 100ml TMG 120 80 40       20 10    
2/19/2001 Water change (75 gal) added 5 tsp CaCO3, 1 tsp MgSO4, 1 tsp K2SO4, 100ml TMG       6.0 2.5 0.10 10 15   results after water change
3/4/2001 Water change added 1 tsp CaCO3, 1 tsp MgSO4, 2 tsp NaHCO3, 1 tsp K2SO4, 100ml TMG 140 120 20 6.0 2.0 0.10 10 10    
3/18/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp K2SO4, 100ml TMG                    
4/1/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp K2SO4, 100ml TMG                    
4/15/2001 Water change added 4 tsp CaCO3, 1/4 tsp MgSO4, 1 tsp K2SO4, 100ml TMG                 y, off by 0.10  
5/1/2001 Water change added 2 tsp NaHCO3, 100ml TMG 140 100 40 7.0 2.5 0.05   15    
5/15/2001 Water change added 100ml TMG                    
6/17/2001 Water change added 100ml TMG 140 100 40     0.10 10 10    
7/8/2001 Water change added 100ml TMG                    
7/29/2001 Water change added 1 tsp CaCO3, 2 tsp NaHCO3, 100ml TMG 140 80 60   2.0          
8/12/2001 Water change added 1 tsp CaCO3, 1 tsp NaHCO3, 100ml TMG                 y, off by .20  
9/8/2001 Water change added 1 tsp NaHCO3, 1 tsp K2SO4 150ml TMG       6.0 2.0   12 10    
9/9/2001 Added 3 tsp K2SO4               8    
10/7/2001 Water change added 2 tsp CaCO3, 1 tsp MgSO4, 2 tsp NaHCO3, 1 tsp K2SO4, 100ml TMG                    
10/28/2001 Water change added 4 tsp CaCO3, 2 tsp NaHCO3, 100ml TMG 140 80 60 6.0 2.0   3 25    
2/10/2002 Water change added 4 tsp CaCO3, 2 tsp NaHCO3, 100ml TMG                 y, off by .20  
3/10/2002 Water change added 5 tsp CaCO3, 100ml TMG 100 60 40   1.5 0.10 15 10    
6/16/2002 Water change added 100ml TMG 100 60 40   2.5 0.20 10 6    
                     
9/20/2002 Water change added 100ml TMG                 y, off by .04  
10/11/2002 Water change added 125ml TMG, 1.5 tbsp NaHCO3       5.0 1.5   10      
12/15/2002 Water change added 100ml TMG                    
1/19/2003 Water change added 4 tsp CaCO3 100 60 40 4.0 3.0 0.40 50 15   results prior to water change
2/11/2003 Water change added 2 tsp CaCO3, 2 tsp NaHCO3                 y, off by .03