help needed with hydro babies please

[doob3r]

OK, here is some info and specs on my grow area and setup to help diagnose problems, i am running a 400 watt MH?HPS system currently MH for veg, air cooled, i am growing in a home made DWC rubbermaid setup after having good results with rumplebuckets, the temps stay 74-79, PH is always jumping, like from 5.5 before bed and high 6`s when i wake up, it seems to be slowly be getting steady, it shouldnt be PPM as they are very young and i havent fed them anything yet, just tap water changed every week or so, until i get on the lucas formula, i dont have anything to measure humidity, could lack of humidity and ph swings cause this?

hope this enough info











thanks city

[SmknVTEC]

Probably the pH and excess ferts?

[doob3r]

no, no ferts yet man, just tap water, changing it eery week, their too young for ferts i think, could it be me having little to no humidity in there and the ph swings?

[SmknVTEC]

Its the pH then.

[doob3r]

thanks man, so everything will be fine when i can get it to level out and stay 5.5-5.8 yeah?

[SmknVTEC]

I would imagine so.

[BioloGyMaJor]

heh doober i laughed when i read the part about calling the dwc buckets rumplebuckets goodstuff