Here's something I found out the hard way. I had a bottle of Novaaqua plus and was running out of it. I went and bought a little bottle of Aquasafe at the local market and when I got home added it to the existing bottle of Novaaqua. I mixed it up and used it on a water change. The next time I went to do a water change, I opened it up and was knocked over by the stink coming from the bottle! IT SMELLED LIKE SOMEONE SHAT AN EGG!!! The more it sat there and I would go to get it for a water change it would be worse. I had to throw it out today. So if anyone wants to make a homemade stink bomb, there you go.
