An interesting Tiger Lotus observation

[zima]

I've got a flourishing Tiger Lotus that is very red and healthy. However, the few past days I noticed something interesting - the new leaves that it is shooting are more or less a 'negative' of the old ones, that is to say that the red background became green (see the picture - on the right is the old healthy leaf, and on the left and on top is the new 'negative of the old' leaf). Any thought? Could it be an indication that something is missing in the water column? Iron?

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[fishboy]

Umm i think they are a darker color when they are new, but they will lighten up as they grow bigger/older i belive.
I had the same one i think and one time and it did the same, the new leaves were darker but once they got bigg and reached the top they slowly turned a brighter green.....

[fischkopp]

I would think a similar way: the brighter leaves are floating, somewhat emersed and hence probably changing their structure and coloration.

[zima]

Okay, but here we have an opposite scenario - the newer leaves are lighter and the older ones are darker. Hmmm...