order from sunsethydro or bghydro...best pricing and service, overall. Imho

Just cut your 1/2 strength nutes by doubling water.
if you are saving that mix...put it in a tub, in the dark with an airstone to keep algae from growing and to keep it oxygenated...
you could probably use 1/2 strength, with slight risk. good luck, let us know...what's up. lw