alteco EPO Putty A+B Aquarium use 100g Single kit

The product shipping was great. No issues. As far as questioning whether this product steals oxygen from the tank while curing (previous review) I can't say. I am building my rock work dry. I am going with the product based on a build thread I read (ChingChai's tank in Thailand) on ReefCentral. He had great results and was building with cycled live rock. So, while he did want to preserve the life on the rock, there were no fish or coral to worry about. I hope to have similar success. My tank is 350g and is a significant investment so I will be sure to follow up if the product is toxic to coral and fish months down the road after everything is cycled and cured. I don't anticipate any issues.

This product is the stuff to use when you need a moldable putty to harden and then be shaped with sanding or cutting. It works and works good! Will buy again.

I'm using this for my customs and it's works perfectly.

I must first say that I did not purchase this from Amazon, but my review is still something you should read... I am writing this review to warn others, as at the time of purchase I was unable to find many reviews of this product myself. You should know that unlike what the manufacture says, Epo Putty is not safe to use in your reef aquarium. The manufacture claims that it cures safely underwater and does not deprive the water column of oxygen, however this is untrue, and you need to know this before ordering. I would consider myself to be pretty experienced with reef keeping as I have been keeping saltwater for several years now, so this was far from a rookie mistake. I used Epo Putty to affix a rock a leather coral was on to another rock, and when I woke up the next morning ALL my fish were dead as well as a few of my inverts. The rest of my inverts and most of my corals were clearly stressed. In fact, it had virtually melted a polyp that was near the site I affixed the leather to. It is my belief that Epo Putty stripped my water column of oxygen(contrary to manufacture's claims)killing my fish. After doing a water change and turning my skimmer up, everything stated to bounce back. I, like most of us, have made many stupid mistakes in this hobby. I have had no one to blame for my mistakes but myself, this however was not one of them. This was the result of a misrepresented (and clearly toxic) product by a dishonest manufacture. I could see using Epo Putty IF and ONLY IF you were allowing it to cure OUTSIDE of your aquarium.