First time grow

I am a first time grower and insearch of tips and suggestions. I am currently growing in a DWC set up using General Hydroponics Flora system and using Kool Bloom as a additional nutrient under 1000w HPS. I have gotten some knowledge from a friend that got me set up and going. But mostly...actually 80% has come from youtube and reading. I'm at day 43 of flowering and it seems the last 5 days I have not seen any change in density in buds. Also some of the leafs just started getting crispy ends and curling and some are blotchy dry and yellow. Temps are between 78-84° when light is on and around 64° when off. I am running my light 13 off and 11 on. I cloned off of them but didn't top. I also semi lollipop them. There is 9 plants in a 10 gallon tote w 2 air stones. Tell me what u think and thanks!

Here is another pic

PH?
PPM?
Temps?
last rez change?
how much of what are you using?

leaf tip browning usually indicates a tox i believe...

looks bloody nice mate , couple of the leaders look a bit skinny , did u hit them with pk 13/14 at all ?

Sorry whats PK? Im new at this. My ph is around 6.5.

GlassPiece said:

Sorry whats PK? Im new at this. My ph is around 6.5.

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PK 13/14 contains high quality mineral ingredients to provide the extra phosphorous and potassium that plants need during flowering .

Thanks I will check into that tomorrow. But I thought using the flora series from general hydroponics I didnt have to worry about that. I did a reservoir chang 4 days ago also.

GlassPiece said:

Thanks I will check into that tomorrow. But I thought using the flora series from general hydroponics I didnt have to worry about that. I did a reservoir chang 4 days ago also.

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yeah your probably right , i didnt read your thread thoroughly enough , kool bloom is probably pk1314 for the flora series... they used to call pk1314 just bloom about 10 years ago , maybe they still do in some countries
sorry for any confusion i may have caused ...

No problem...I might just do a water and nute change tomorrow and see if if any changes. This strain is Blue Berry and I was thinking I only had around 2 weeks left but not sure. Im at 43 days now and want strictly clear tricones so hopefully this will be last water change till flush. Thanks for imput and love the site.