Why do my aquarium plants keep dying?

[ryanbuhler]

Hey there I just got plants 5 days ago and they are already starting to die.

I never really had luck growing plants only elodea and hornwort.

I wanted to get some different carpeting plants so I first thought I should get some nutritious substrate so I bought Seachem fluorite black substrate.

and I also add liquid fertiliser twice every week 

and then I got plants: different types of liliaeopsis and some Rotala.

my tanks outside and I heard these can even go in ponds.

but after 5 days some leaves are starting to turn yellow.

and I’m not sure what to do I’m not sure if it’s the light but the sun does shine on it in the afternoon a lot.

thanks!

 

[Caryl]

Different aquarium plants are like garden plants, each needs different things to make sure they grow well. The two you mention need strong light and not just in the afternoon.

It may also be if you bought these plants as tropical, from tropical tanks, then planted them in an outdoor aquarium, the sudden change in temperature will have been a shock.

[alanmin4304]

The plants you want to grow are tropicals and will need a heater as well as good artificial ligh.