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Ok, so looks like it really was an error on my part with the last filter. The first ones were bad, carbon was loose and I opened one and saw pellet carbon, which they say isn’t any good. Previous setups were always filter and next to it the fan, blowing air out through ducting that had a 90...

There’s negative presure in the tent, the thing is no matter what single filter I use, I can smell the exhaust from the ducting that comes out of the tent. I have negative pressure in the room as well, but only when the main ventilation, that I have no control of, is on. When it’s off the place...

Ah, ok. So carbon scrubbers don't always completely remove all the smell, I guess that's the case here. There is an exhaust in the room but I can't mount any ducting to it. For about 10h a day there isn't any ventilation in the room. Anyway, thank you!

I run a 210m3/h(120CFM) fan, the first two filters were rated at max 360m3 / recommended 240m3, and the last filter I bought just yesterday is rated at 480m3, a Can-Lite 425S. I did mount it outside the tent, though, just to try it. It should still work, right? I have about 2 weeks to go and the...

Hi! I have a small grow tent in a 30m2 room. The air from the tent is sent directly to the room, I don’t have another option at the moment. The problem is, no matter what filter I try (I tried 4 different ones) the air quickly gets stinky. And not just in a “hmm, what’s that smell?” kind of way...

That’s great, thanks man! I’ll watch for the ratios next time and I guess I’ll opt for coco specific nutrients, it should be easier for a beginner. I went with GH because this started as a DWC grow which went sour in about a week, I just couldn’t keep the temperature of the solution low enough...

Yes, I don't let it dry completely, I usually water when the coco is still slightly damp on top. I just meant to say, I don't feed right after the flush. The Blue dream drinks a lot so lately I water her every day, the other three every 2 days, morning or evening. @jondamon Ok, so just to be...

Great, I’ll keep that Ca to Mg ratio in mind for the next grow. As for the lights, I thought of that too and managed to pull them up a bit so they’re at about 45cm, can’t move them higher. After flushing the pants eventually need to be fed, I guess? Usualy after I flushed I just let the coco...

I believe it really might be a Ca or Mg problem. Thing is, I just noticed that the CaMg bottle(Aptus CaMg Boost) says add once weekly at 2.5mL/5L of water and I've been adding it pretty much every watering (every two days atm) as the store guy suggested(coco apparently needs lots of Ca)... crap...

Yes, when I just water, I always add some Cal-mag, that's what the local store guy tells me. I don't have a ppm meter, I guess that should be on my priority list for the next grow. And only growing one plant in that small tent with proper drainage. I feel like I've searched the entire internet...

Thanks! I've been adding slightly less nutes the last few weeks. I'm going to remove the scrog today so I can move her and do a proper and thorough flush. When that's done, should I wait for the coco to dry and then add 1/2 nute strength?

Hello fellow growers! This is my first attempt at growing anything indoor and so far it has gone pretty well. But now I'm starting to have some really bad issues with one of my 4 plants, a Blue dream, even though it's otherwise significantly outperforming the other 3, a white widow and 2...