Switched from 600w HPS to a mars hydro tsw2000 and something doesn’t feel right

Powderedtoastman · May 10, 2024

Hello people of the internet

As the title says I recently switched from hps to led 600watts to a mars hydro tsw 2000

The plants are all 23 days old germinated in soil

18/6 hrs
BioBizz allmix
BioBizz fertilizer
Water always phed between 6,2 and 6,8

I’ve had the light around 22inch height and dimmed to 35% and plants had 0 vertical growth I raised the light now to around 30inch and 35% dimmed

But still they seem to be way too small and way behind if I compare it to my hps grows

What could be wrong here? Or is everything fine and I am overreacting ??

Could this be caused by to low temperature I had it between 18 Celsius and 20celsius
I raised the temp now to 23-24celsius

The 4 in the middle are 3 zamnesia sunsetsherbet and 1 fastbuds gelato
The bigger ones around are 3 white monster and 3 white widow

I’d really like to get some opinions

Thanks a lot in advance

Del boy · May 10, 2024

low temps deff slow them down i think you are worrying over nothing they should pick up now you have up the temp

Del boy · May 10, 2024

The one thing i would do is get a good temp/Rh sensor those cheap ones are way out most off the time so can lead you in to probs just my 2p worth

Badfinger · May 10, 2024

IMO, at 23 days old, your light should be way closer to the plants and running at least 50-60%
Also, is your light big enough for the size of the grow space? You did not mention coverage area.
But I'm pretty sure your running to low of a dim, and your lights to high up.
Here's the map of your light off the manufacturer's website.

Powderedtoastman · May 10, 2024

The tent size is 1x1m or roughly 3x3ft

This the first time I ever tryed LED lights
I will lower it to 12inch 30cm and turn the dimmer up to 50%

It seems so low and strong

Thanks for the fast replies really appreciate it

Del boy · May 10, 2024

Powderedtoastman said:
The tent size is 1x1m or roughly 3x3ft

This the first time I ever tryed LED lights
I will lower it and turn the dimmer up to 50%

Thanks for the fast replies really appreciate it

if you have iphone dowload the photone app it will give you a rough idea of ppfd you are putting out its not perfect but will help

Badfinger · May 10, 2024

Powderedtoastman said:
The tent size is 1x1m or roughly 3x3ft

This the first time I ever tryed LED lights
I will lower it and turn the dimmer up to 50%

It seems so low and strong

Thanks for the fast replies really appreciate it

I personally would have gone with a light with a bigger foot print. But thats a mute point now. I have learned that if a manufacturer says its good for a 5x5 for flowering, I would use it in a 4x4.
LED's tend to beam straight down, the DLI drops off like crazy outside their actual foot print.

Badfinger · May 10, 2024

The photon app that Del Boy recommended, is a great free tool. I use it with my android, it works very well.

Powderedtoastman · May 10, 2024

I was kinda forced to buy this one my country just legalized and everything is sold out for months

In the future I will go for a spiderfarmer SE 5000 or a similar product of mars hydro

The 3 white widow and 3 white monster will go outside in the garden and I’m planning to flower 4 plants at the same time in the tent

I will start a grow journal this evening tent and garden combined

I’ve had a account here a couple years ago between 2013-2015 got busted and had to stop for quiet some time I was called ma311 I lost the password and email unfortunately

Thanks for the quick help let’s see how it turns out in a week or 2

Badfinger · May 10, 2024

Powderedtoastman said:
I was kinda forced to buy this one my country just legalized and everything is sold out for months

In the future I will go for a spiderfarmer SE 5000 or a similar product of mars hydro

The 3 white widow and 3 white monster will go outside in the garden and I’m planning to flower 4 plants at the same time in the tent

I will start a grow journal this evening tent and garden combined

To get as much DLI to the outer perimeter of the tent, maybe leave it at the 30" height and crank her up to 100%.
But i'd use the photon app to make sure your not too hot in the middle.
The app will help you find the sweet spot between height and %/intensity setting for the light.
It takes a lot of the guess work out of the whole ordeal.

Switched from 600w HPS to a mars hydro tsw2000 and something doesn’t feel right

Powderedtoastman

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