4 mini tanks

I have four mini aquariums going at the same time, all of which are at various stages of nitrogen cycling (new aquarium syndrome). To help me keep track of water changes along with the daily Ammonia level and Nitrite level, I created a mini chart based on the great charts available at freshaquarium.about.com. I made my version of the charts in a spreadsheet program. The chart is wide, so I do print it out in landscape and have 35 daily readings available for 5 weeks worth of tests and water changes.

My charts look something like this:

Daily Ammonia Levels
> 4.0
> 2.0
> 1.0
> .50
> .25
> .00 Day #	0	1	2	3	4	5	6	7	8	9	10	11	12	13
Daily Nitrite Levels
> 2.0
> 1.0
> .50
> .25		[N/A]	[N/A]	[N/A]	[N/A]	[N/A]	[N/A]
> .00 Day #	0	1	2	3	4	5	6	7	8	9	10	11	12	13
WC	%	%	%	%	%	%	%	%	%	%	%	%	%	%
Today is:	Feb 1	Feb 2	Feb 3	Feb 4	Feb 5	Feb 6	Feb 7	Feb 8	Feb 9	Feb 10	Feb 11	Feb 12	Feb 13	Feb 14

Water Change 10% - 20% (WC) and cut back on fishfood	WC up to 50% + less food + watch for signs of distress	WC 50% as many times in a day as needed to drop the levels below the red levels.
Other tips: To reduce very high levels of Ammonia, consider using an ammonia neutralizer and gradually lower the PH to 7.0 or lower (as appropriate for the type of fish in the tank). To reduce very high levels of Nitrites, consider using ½ teaspoon of aquarium salt per gallon of water in the tank and added aeration either with an air pump or lowering the water level of the fish tank to allow for a water cascade from the filter (with a back of the tank filter system).

These charts help me to stay organized with my various tank tasks and helps me to keep track of days when I have made water changes as a result of high readings after I check the ammonia and nitrite levels.