This is very true, but I don't know if you want to add duck weed to your tank. It has taken me forever to get rid of it. Frogbit is a much nicer floater and grows quickly.Duck weed
I had a similar experience, except it was the warm summer weather that killed my plant during my first foray into baby tears...My dwarf baby tears shriveled up and died without co2 (pressurised) I really don't recommend it
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