I now only have 2 white clouds left after cycling a 30g. I think the last one died of stress because it was always hanging out by himself. :sad: I know, I know, unfortunately I found this site AFTER I had already got zebra danios and the white cloulds to cycle. Here's my question, I need to build the white clouds back up to a school of 6 but it probably wouldn't be good to add 4 at once right? It's only been down to 2 for a couple days. Or would it matter in a tank that big? Or will the 2 by themself be okay since they seem to get along okay? I think I eventually want to move them to my 10g once I get it stablized but I will be adding other fish so I probably would want a school of 6 right? Sorry so long!