Little help with plant diagnosis

[Thutton]

Hello, I’ve tried to search for the cause online a few different answers come up from calcium to “its expected” lol

My nymphoides Taiwan have some leaves and edges that go transparent I’ve attached some images.

Tank
Established, finnex planted plus led and 8w aqueon t5, root tabs, dosing tropics specialized weekly and co2 at 1 bps I also add small dose of seachem equilibrium to add calcium and a little hardness (not much as fish are soft water fish)

Overall the plant and others are showing great growth, crypts and Anubias don’t have this problem.

Any help would be appreciated

 

[Thutton]

I’ve found another post about it being when the lower leaves are shaded by the larger upper leaves..... how would one even avoid that

 

[Delapool]

Hates something doesn’t it [emoji4]

I’m not going to be much help as haven’t kept that one but saw the same reference on calcium [emoji6]

How’s your tap water - I assume all ok? Ours is slightly salty (can’t even taste it), but there are a heap of plants that melt on me whereas go fine in other suburbs. I’ve had a few people comment that our hills water is terrible for growing plants in.