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Message: <blockquote data-quote="Whitelightning777" data-source="post: 153956" data-attributes="member: 26980">Age is highly variable because growth rates vary greatly. Even within a genus, there can be a lot of diversity.For example, a 1year old B vagans, B sabolsum, & B hamorii will all have very different growth rates from one another.Another factor is temperature as well as frequency of feeding. If you're going by age, you have to know the exact species you're dealing with.In addition to that, some are much more sensitive to feeding and temperature then others are.Generally speaking, but not always, males also tend to grow faster then females in most cases, but slow growers are still pretty darn slow.</blockquote>