[talontsiawd]

I would just let it grow. This plant always "tricks" me into thinking it's not doing well but over time, I have found it really easy, just really sensitive to changes. Just cut back the leaves that are damaged and see what happens. I would be that it will grow healthy leaves unless other plants are suffering too.

 

[talontsiawd]

I disagree as some "melting" leaves in Nymphaea are rather common: 1-2 melting leaves surrounded by 20+ perfectly healthy ones. The ones that melt are either the oldest leaves on the plant or the youngest.

You can also achieve the same result by:

• slightly "folding" the stem
• trimming the roots
• too long exposure to air
• temperature change up or down
• replanting

I don't know, I have had a few and many have done this, just to grow back perfectly. I don't want to say you are wrong, and you are my plant mentor, but I have never not had this plant suffer unless, something else is suffering. I guess that may be hard to gather from this post but I have had transparent leaves for no reason, just to have it go away. The plant is so sensitive to change, but still robust enough to always come back, given everything else is right, for me to just leave it alone.

That said, the roots on these things can get HUGE, so a trimming isn't a bad thing.

 

[talontsiawd]

Not sure if you meant this post for me or for OVT, if it was for me, I don't mind. I'm not always correct about every problem. I like to work my way through the list of likely problems then move on to less likely problems.

The OP posted a picture of his A. reineckii on APC which also has holes. The OP didn't post that photo here so I suppose I have an unfair advantage coming to this thread.

Most of the holes look a lot like nerite holes since they are fairly irregular and seem to lack the boarder that potassium deficiency has. However, not all the holes look like nerite damage and nerites will often eat weakened plants, or eat dying patches of plant tissue. So perhaps the nerite simply ate through the leaf where the potassium deficiency symptoms are. Either way two plants in the tank with potassium-like holes seems to suggest a possible lack of potassium, which is easy to test and rule out.

I was talking about OVT being my plant mentor as I chill with him a few times a year and admire his tanks.

As for this deficiency, you may be on the right track. I don't get why people pick a certain plant when a very hardy plant in the same tank is suffering (no offense OP, it's just can have use chase our tails trying to help).