Do I need to fertilize when moving canna, pickerel rush, arrowheads from pots to gravel bed in a new pond?

[malibu73]

I filled my pond about 2 weeks ago. I got some pink pickerel rush, cannas, and arrow heads from the plant store. I split them and planted them in gravel only beds in the pond. Some are looking a little yellow (may be my imagination). Should I get some fertilizer until the pond naturalizes? Or just wait it out?

 

[mrsclem]

Do you have fish in the pond?

 

[malibu73]

Do you have fish in the pond?

Not yet, I was going to get some this week.

 

[addy1]

The plants will struggle a bit until the fish add fish poo to the water. But they will grow.