If your soil is rich in M.O and N use less biogrow at least half of the dosage, you can see the claws.
If your tap water is low in EC think about add calmag or just magnesium sulphate -epsom salts- ( I can see a early bit of mg def)
And yes you should start to use biobloom and top-max if you use their flowering enhacer, esentially top-max is leonardite, so if you can buy other brand less expensive of leonardite it will do the same effect.
Happy grow mate.