It held snakes before, I checked the glass it's thick enough for water it's a 33 gallon long tank with crazy dimensions it's 48"x13x12 it's really an interesting tank I've never seen this particular size before. It was $0 so I'm not complaining and it came with a light so I'm not hating on this tank it's just for my sister so I can set her up a tank with tetras and danios and maybe a plecostomus or something. Has anyone else ever not seen this size?