Do I have a calcium deficiency

[Captnpancake]

Like @myke says^^^

It doesn't look clearly like CA def.

So what could cause yellowing veins

 

[myke]

These deficiency are difficult to diagnose ,first is pH then could be overfeed.

 

[Tracker]

^^^that
pH problems can cause lockout of certain nutrients.
Overfeeding can cause lockout.
Overwatering can cause issues too.

 

[myke]

Almost like the beginning of a Boron deficiency but thats not likely so brings it back to pH.Over water, under water.
Before you add try to take away first,tips dont look burnt,how is overall color?

 

[Captnpancake]

Almost like the beginning of a Boron deficiency but thats not likely so brings it back to pH.Over water, under water.
Before you add try to take away first,tips dont look burnt,how is overall color?

 

[myke]

How many plants? They all have this?

 

[Captnpancake]

2 plants both seem to be yellowing

 

[myke]

Cant tell,has the overall color gone lighter last couple of weeks or have they stayed the same shade of green?

 

[Captnpancake]

Cant tell,has the overall color gone lighter last couple of weeks or have they stayed the same shade of green?

I’m not sure they started life as dark dark green and now we are here

 

[myke]

Without being there its hard to tell,only you know how much food they got.
Trial and error,no ppm meter right?

 

[myke]

I’m not sure they started life as dark dark green and now we are here

Look at past pictures if you have them.

 

[myke]

Happy frog soil using the trio twice a week as recommended by bottle 7ph water every day 1.5 gallons 80 with lights on 73 with them off constant 68%-70% humidity 720w led on 75% 2.4 away from plants

Perhaps too strong,any runoff when you feed?

 

[myke]

Trial and error, give one plain water to a good runoff and remove it.See if it improves.Could be just build up,I always feed to runoff to remove any build up.