Possible seedling problems2?

[Honkfro]

These seedlings are grown in canna peofesssional plus mixed with about 30% perlite and watered with rain water that has been left out to settle for at least 24 hours i keep getting dark yellow/brown edges on the older leaves any idea why? My grows have been fine and the only things that have changed is im watering with rain water rather than a filter tap and went from cheep leds to vipar spectra reflector series temps are between 65f and 75f and 60 to 70% humidity....thanks...Paul

[Toker1]

How are you collecting rain water? From the roof & gutter system? And why let it stagnate for 24 hours?

[Honkfro]

from the roof and gutters into a water butt... someone said to leave it out as it gets rid of some of the impurities but probably not enough due to the problem I'm getting... thanks for the reply... Paul

[Toker1]

I think you are confusing a few things. Leaving it out for 24 hours is not beneficial. For tap water and rain water the same.
Lastly, that roof to gutter to storage water is heavily contaminated. Don’t give the girls anything you wouldn’t drink yourself.

[kingfish]

I think you answered your own question. The problem started when you started using runoff rain water. Stop using it. You probably putting some kind of crud from the rain water in your plants.

[Honkfro]

I think your right will post updated photos..... thanks for the reply... Paul

[Farmall]

Do you know the pH of that water ? With the leaves in my gutter, some rain water comes in at the low 5’s ...a bit too acidic

[Toker1]

As a general rule, you typically don’t want to bring in something that came directly from outside into your indoor grow room. Just causes issues.

[Honkfro]

Thank you all...I am just going to stop using the rain water as it all seems to be pointing towards that as being the problem ☺

[Honkfro]

[Honkfro]

Bouncing back 👍☺ no more rain water from the gutters

[Toker1]

Nice! Looking great!! 👍

[Honkfro]

Thank you ☺