Hygrophila polysperma pale green leaves

[Fish are friends]

I have some hygrophila polysperma growing very fast in the back of my tank. I can notice new growth almost daily. The tops are touching the surface but the top 6 inches, the leaves are a pale green and seem very thin. I have flora base pro substrate and once a week I dose 25ml aquadip plant food + ( have to be careful which one I use as I have shrimp). Would trimming them half way help or is there a different solution. All the other plants are lush and green and even the dwarf hairgrass has new growth.

 

[Andy Pierce]

They are not pale at the tops, they are reddish, which is a sign of good health with this plant. That's that happens with hygrophila polysperma in high light and as they grow closer to the light source the light flux increases.

 

[Fish are friends]

Unfortunately the paleness doesn’t come through completely on the pic. they do grow like crazy and I guess I can cut half way down, replant and they will grow again.

 

[G H Nelson]

The paleness could be the new leaf colour......it may increase in a darker green colour in a few days!

 

[G H Nelson]

Aquadip doesn't say that it has Nitrate in the product!!

 

[Franks]

Hygro turns red the closer it reaches the light. I've grown this in a high tech tank and it was crazy to control. It would easily grow an inch per day if not more once established.