Sword-like identification and info?

It may have been grown emersed before it got to the store. Is it brand new? and maybe just arrived at the store? It may just be adjusting to being submersed

KayakJimW said:

It may have been grown emersed before it got to the store. Is it brand new? and maybe just arrived at the store? It may just be adjusting to being submersed

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It has been here about a 10 days.
I'm guessing the roots have to start coming strong for "growth mode".

Yes, it may be in a weird transition mode.

Looks highly deficient. Could be kliner bar or a amazon sword but that's a gguess good root feeder, throw in some root tabs
Once again, highly highly deficient, so could be any common sword out there, a bit rusty with sword ids

I'm guessing iron deficiency. And that looks like submersed growth. It's one of the swords. Also guessing someone brought it in for trade. Commercially grown swords may look like many things but deficient is not one of them. The amazing thing is that it's as large as it is - usually they start looking stunted too.

It may have suffered some real issues recently. As everyone stated, it looks pretty sickly. However, that may not be your fault, but rather the previous owner or shop owners fault. It looks like a sword species. Don't panic, just make sure the crown isn't covered, but the roots (or what is left of them) are buried in the gravel with some form of fertilizer near them, a root tab wouldn't be a bad choice. As long as you're other plants are looking healthy then your fert dosing is likely sufficient. Give it time and the leaves may all fall off/melt, but if it wasn't totally dead when you bought it, there's a chance it'll eventually grow some new roots and leaves. If it's a sword, it'll bounce back pretty strong in a month or two.

Tough to tell, but maybe E. martii? Or maybe one of the hybrids from it. Kleiner prinz?

And blacktetra has it right, if the roots structure is fine, give it what it needs to grow, and it will come back.