2x White widow check them out and comment i'm still learning..Thankx

Hi there. Here i have my girls would appreciate any comment. It's my 2nd crop ever so there's still a long way to go... they're +\- 2 and a half months old i believe that by the end of the month they will start flowering. By now I'm using a 10-10-10 NPK solid and i was thinking if i should give them any bio-stimulant such as algee concentrate. I was told it would give them a boost is this true?
I will post new pics when i get the chance.
Greetings from Portugal

Hi there. Here's an update on how things are going. They're getting bigger each day but some of the older leaves are turning brown and i'm getting a bit concerned.. Could anyone tell me if this is normal or if not what should i do. ANY advice or comment is welcome. Here are some pics i took earlier today. Thankx

hello there,subbed to this grow by the way :}
i'm on my first grow as well mate,check out my posts
anyways i aint no pro but ive just had nightmare with nute burn on one of my babies,had to have a flush out
some o those markings on your leaves could be a sign of nute burn,looks similar to what i had
might be idea to ease off nutes or dilute em a little more,just an idea mind in my opinion.
some real good growers on here though who know just about everything and may tell you summat else and have helped me alot

good luck man

Hi there here are new pics from my ladies... Had some mite troubles but now everything seems fine. they're about 5 weeks flowering take a look. Peace