How to switch over to flowering nutes

I'm about to put my plants onto 12/12 lighting. Been using basic seaweed fertiliser during veg but gonna switch over to flowering nutes now. Should I start off with 1/4 strength for first watering and I should I continue with the seaweed fert too?I'm using plant magic old-timer organic bloom if that means anything to anyone. Thanks

Wait 3ish weeks until you start to give flowering nutes.

I wait until they're done stretching to start flower nutes.. Then 50/50 veg and flower for a couple weeks.. Then flower nutes..

I have tried running veg ferts into flower and didn't notice a big difference personally but that can reduce stress on the plants. (less things changing at once)

I think some growers do it to supply extra Nitrogen through stretch while plants are setting bud sites and stacking nodes.

i usually wait a week or more before adding pk