Hello, Currently I'm dosing double EI on my tank and I'm certain I should be dosing more of something. My setup: 18x12x12 rimless pres co2 36watt pc full spectrum. what I dose, K2Po4 kno3 trace every other day with a rest on saturday and a 60% wc on sunday. My aims are good growth, optimal water quality and no algae. My limiting factors are that some times I am away from home and don't get chance to dose so need to be able to dose for more than one day at a time when I am away from home. I also dislike measuring ferts preferring to dose dry by spoon though I didn't mind liquid dosing.