Hard to say what but it definitely looks low on something. Doubt its Mg if you started with 9 ppm
If yesterday was macro day (no micros) and today is micro day, see if they look better by the end of the day. I used to get a little of that when micros were still low (B and Zn specifically) Purely a guess in this case obviously
CO2 and all that still good? Nothing wonky going on otherwise?
Yeah co2 is still good, no changes..
Overall much less pearling today though.
There are a few leaves that are practically pointing straight down.
No change yet.
L. Sp. Red is a pretty good indicator plant.
I keep a close eye on mine, as many times it will alert you to something before others are affected.
Like Burr said, looks a bit droopy. Just curious, what is your macro dosing these days? And I believe you cut down on micros, back to three days a week? How was this plant doing before you cut things back?
I ask because it looks to me like it wants more of something. When I see something like that, many times I will toss in an extra full dose of macros & macros, then watch closely for a day or so. If the plant perks up, tells me it was missing something.
If it doesn't perk up, I'd be looking at CO2, making sure pH drop is good, then tank maintenance (vac, water change, filters, etc).
But as usual, it could be something completely different, but that's where I would start.
Well the obvious change in the tank is switching to a hydroponic t5 unit lol.
Everything else is about the same, and its been 4 days, so I'm assuming i've run dry on something.
Macros are Mon, Wed, Fri, Sun
NO3 8.35 ppm
K 5.26 PPM
And then here is where I might have messed up..
I only added 1 TBSP Equilibrium last WC..
Originally Posted by Seattle_Aquarist
Do you have a couple of pictures of other species in the tank please, especially stem plants newer and older leaves?
I do, everything looks good still though except for the Super Red.
I'm assuming like Greggz said it is just the first plant to show signs of whatever is happening.
I Imagine if I don't figure out the cause though I will start seeing issues in other species.
The drooping is on sets of leaves between the 3rd and 5th node, not really any below it or above it.. So I'm assuming this is a mobile nutrient issue.