Tom Barr method...does this schedule sound right?

Here is my new dosing plan for my 15 gallon wide tank (2.7wpg, 35-42ppm CO2,
fish load: 8 harlequin rasboras, 3 saes, 3 otos, 3 clowns, 2 corys):

Sunday - 50% Water change - Traces 5ml, 1/4 tsp K2SO4, 1/4 tsp KNO3, 1/16
tsp KH2P04
Monday
Tuesday - Traces 5ml, 1/4 tsp K2SO4, 1/4 tsp KNO3, 1/16 tsp KH2P04
Wednesday
Thursday
Friday - Traces 5ml, 1/4 tsp K2SO4, 1/4 tsp KNO3, 1/16 tsp KH2P04
Saturday - 1/8 tsp KH2PO4 evening or morning?? (Load up the plants just
before next day's water change)

What does anyone think? Especially Tom Barr's ideas would be good. I read up
on loading the plants up with PO4 right before the water change to give them
that extra boost advantage...

Thanks alot!!

Dave Picklyk.