look new the setup , how long tank be running?

Nice Fluval Chi 19L Version 1
Bonsai tree bought from penang ?

Davido sorry to hear that. Like what arrow said. Better put activated carbon to absorb whatever remaining toxins leaching out... Risky indeed

Yes, thanks all. Did WC in the morning. By afternoon, I bought another filter and put in only carbon media. Setup a hospital tank with 50% tank water and 50% filtered water. Moved some of the shrimps there. Most survived but a few still died.
Lost many cherries, a few CRS, a few Tigers. No Yamato deaths, but they are very still and not eating any more. Very annoying episode.
Will continue with WC tomorrow. Expect some more deaths, but lesser in comparison to day one.
Not sure whether it is the super glue or some pesticide on the plants. Even at Pets Mart 88, the guy there said can use super glue to attach fissidens. Later I will setup a test tank to find out for sure whether super glue is harmful to a shrimp tank.

Edit: It may be not the super glue. Too many folks are saying it is safe even in shrimp tanks.
http://www.plantedtank.net/forums/88-shrim...gel-shrimp.html

It may be the plants I got from the shop was laden with pesticide. I will find out for sure when I test it later.

btw guys. where can i get a nice bonzai driftwood?

This tragedy cost me to lose a few hundred shrimps. All my CRS died, except 1. The berried CBS also died this morning. All my Tigers are dead. My estimate around 300-500 shrimps died, although I'm counting shrimplets and hatchlings.

The first pic shows the status of my tank on Day 3, before I removed all the plants I had put into the tank.

So I setup a test to determine what was leeching the poison. I setup three jars - one contained the suspected plant, one with aquarium water, and one with fresh super glue. The superglue brand can also be seen. I let it set for 4 hours.

Then I placed 2 shrimps into each jar. I wanted to wait for 24 hours to see the result.

But within 5 minutes, one shrimp in the plant jar was lying on its side. So I removed it and quickly put it into the Pyrex jar. It contains aquarium water. Twenty minutes later, the other shrimp in the plant jar was also lying on its side. So I took it out and also placed it into the Pyrex jar.

Its only been 40 minutes now, the first shrimp in the Pyrex seemed to have recovered, while the second one looks like its almost dead.

The shrimps in the remaining jars, including the superglue jar are looking okay. I'll continue to observe the superglue jar for 24 hours to see if they are distressed.

So now I confirm the source of the poison is the plant that I bought from the unreputable shop. The plant is Ludwigia villosa bought from lelong store, seller Aquashop. Its the third photo.

I'll probably send a note of reprimand so that he knows he's selling poison plants.

Would it make any difference if I quarantined this plant? Unless I place some shrimps into the quarantine tank (and usually people don't put shrimps in quarantine tanks), there's no way to know its leeching poison. Even at day five, it still leeches poison.

Q2 is abit too big for me.
i'm just a 45 litre tank lol

how about Q5?