New growth curling

[fishnplant]

I've been battling what seems to be calcium deficiency, but I am getting no luck. Dosing EI using various methods, and heavily (2x or more), micro via with csm+b. Tanks have strong flow, co2, weekly wc, heavily planted, in 2 tanks, both exhibit similar problem. Also started dosing equilibrium recently.

my water report,
https://www.sjwater.com/sites/default/files/2024-05/SanJoseWater2023-050424 FINAL hi res.pdf
i am in the vw surface, i believe my water is moderate hard already, but since i've been having issue equilibrium was introduced. I've also tried dosing gypsum with mg home made mix, nothing helps.

substrate is 5+ years old dirt (probably inert by now), and sand. these tanks are both very old, i've been keeping fish & plants for a while.

 

[Connswater]

I cannot give you a definitive answer, in my experience calcium deficiency leads to leaves curling, the leaf literally rolls in on itself.
Hygrophila polysperma I found an excellent underwater indicator.

A picture of a terrestrial plant with typical leaf roll from calcium deficiency, a pepper plant.

 

[dw1305]

Hi all,

I've been battling what seems to be calcium deficiency, but I am getting no luck.

To be honest they don't look noticeably deficient in anything.

Looking at your water report, all the water sources contain some calcium (Ca). It doesn't give you an elemental calcium value, but it gives you hardness (dGH), and even if some of that dGH is magnesium (Mg) it would still be enough Ca.

Hardness (as CaCO₃) ppm N/A 133 107-158 376 210-503 86 37 - 117

The curling on the new leaves of the emergent growth looks to be just the change in morphology as the plants go from submerged to emersed.

cheers Darrel