Making plants grow well

[cyruslaguna]

Hi all

Need your tips on how to make the plants grow well in a freshwater aquarium? I have java moss, hornworts (grows steadily even without lights) and a couple of plants which need your help in identifying them.

Do the attached plants require strong light?

Does liquid CO2 help? A friend uses a couple of drop into the tank and his java mosses are growing well coupled with 11W light.

[Tristan]

First one looks like hygrophila difformis, second one looks like cryptocoryne parva, not sure what the third one is, the leaves look a bit melted. They should be okay under low light and without CO2 injection

[cyruslaguna]

hi Tristan, for the cryptocoryne parva, it seems to be turning yellow now; have not turned the light on for awhile.

Water temperture around 28 - 30 degrees. Should I add some liquid CO2 or fertiliser to salvage it?