Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
.25 oz is pretty close to 7.3ml
I dose my tanks at the rate of 1ml per 3 gallons. If my recipe and method were converted to this container I would dose a 20 gallon tank with one squirt, so the 40 gallon would get 2 squirts. I would not try to mix the fertilizers any more concentrated than this.
How many squirts to empty one of these dispensers? Divide by 2, and that is how many doses there are.
Set up one bottle with N, P, K
Set up the other bottle with trace minerals and iron. (CSM+B and chelated iron)
The amounts listed are a single dose. You will have to do the math and figure out how much to add to a bottle.
50% H20 change-weekly
First bottle has Nitrogen (N), Phosphorus (P) and Potassium (K)
1/2 Tsp-KN03 3x a week OR you can use K2SO4 if this is too much NO3 for your tank.
1/8 Tsp-KH2P04 3x a week
3/4 Tsp-GH booster once a week if needed. If your GH is at least 3 degrees then your tank may not need it. I add this with water changes, for those few tanks that need it.
The second bottle contains:
1/8Tsp-CSM+B (a trace mineral blend) 3x a week
1/32 tsp-Fe/Iron 3x a week