Looking better! she's definitely rebounding!
Been there, done that... micro is much harder, as you said, "micro" room for error too.
The seedling stage is always a delicate one, until I see them bulking up I can't stop worrying. But that little girl looks like she's almost there!
She's looking gorgeous
lol! Wouldn't mind that in my morning toast!
I've yet to grow Killer A5 Haze, but from my observation with C5 Haze and OTH, in addition to wet/dry cycles I noticed they like to have their feet rather dry, they don't like at all the typical seedling pot bottom constantly humid.
Keeping the medium less humid and watering on the pot borders to encourage her to colonize the pot, while not keeping her bottom feet wet seems to work great with them.
Soon she'll own the pot, as you say you'll notice instantly: perked leaves praying etc.
Yes these small filters won't take too much to clog or saturate... The bigger filters in dupont cases are cheaper and can take more sediments, so the thing is to purchase them in packs and replace them periodically, say each 3-4-6 months.
I don't think your water carries much particles and is probably mainly dissolved salts, that's why I suggested to better use the dual carbon filter combo instead of the typical polipropilene 5 micron sediment filter as first stage; in any case you could try and watch the filter afterwards, particles (rust, etc) are easily visible as they saturate the poliprop filter; in fact the filter housings used for these are transparent to be able to see without dissasembling. The less crap that goes to the rest of stages, the longer the remaining stages filters will last.
I have a well (loads of dissolved particles), so now I get these in 3 packs and use it as first stage... will probably have to replace them each 2 months judging by the rate the filter is getting stained, but they're cheap, like 3€ each (9€ pack).
nice upgrade!
Wow! what a turn of events! She's almost a big girl!
Something I have observed is Hazes are specially sensitive to air exchange/movement.
When they're developing, specially if focused in rooting is when I have seen that light stress; usually playing with SILs/LEDs height to canopy, extraction and air circulation fixes it, allowing her to increase metabolism and "eat" all the light energy.
Leaves are sort of heatsinks, and air helps them to cool and transpirate.
Yep, I wish I had read repuk's advice a few weeks back when I switched out lights for a week. Went from really happy under flo, to wrinkly and headed downhill under the 640w LED. Learned my lesson fast enough to turn them around and get the roots going. Also longer dark period helped.
Good luck OZZ, fun to have a new setup. You can kill it in a 2x2, grow a 4 oz plant no worries