Hi Isaac,
i think this question has been posed in AQ and other forums. most say doesn't matter, except the question of whether anything is limiting or mixing the P's and Fe's. Some split the macro and micros on separate days to keep it from making Fe's useless.
These are in high light tanks ha. meaning >3WPG for a standard 3ft tank.
IMO, you don't have to worry about algae hairs like this if you dose weekly. Let the plants talk to you. So if you hear 'FEED ME In the morning' you know what to do.
Regards
Stan