Free and natural way to cure Green Water - Post link to APC

Originally Posted by Naga

normally you'll find willow trees at chinese temples. also spoted at plant nurseries & KK hospital. what i understand from my friend who knows abt horticulture, the willows here are from china, introduced by LKY when he first saw it there, dont know true or not. dunno the willows here are the same strain like the one posted in the russian forum. it's a very nice tree indeed!

where you spoted it in KK hospital? i stay pretty close to KK and keen to drop there to get some.

kena green water from last week...

a bit skeptical about how this thing works. only removing ammonia? i can do that by change water. remove nitrate? like that will also kill my plants too right?