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