Can anyone tell me if its a good idea to add some bio bizz fish mix to my outdoor grow. They have been out now 3 weeks i have used fish blood and bone, lime and sulphate potash at the moment. I have some more going out soon so would it be better to start a fresh with this stuff.

Yes its good stuff. i use it with grow just use half measures when mixing the two together.

its up to you really. supplementing the feed in the soil may produce better yields but if you've added ferts to the soil and the soil is allready fertile be careful of overdoing it mate. i used to feed on a regular basis with liquid feeds and it does help in some ways and hinder you in others. in my opinion if it aint broke don't fix it. growth wont be staggering this time of year even with the sun wait till june/july for that, i personally would give it time grow and get a good solid root system in to place first if i was going to water it. if its a small plant it'll be using small amounts of feed and you've given it plenty if you used the dosage yr man told you to . also the soils wet under the surface wetting it more will only stunt yr roots and get them more reliant on you watering it.

Yeah what Munki said

when you drop your soil in stick a couple of inch of the local soil back over , it stops some of the smell of the organics as this can attract animals , ive had rats before digging holes into my freshly dropped off soil before