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Message: <blockquote data-quote="Tomoran" data-source="post: 78946" data-attributes="member: 1152">Yup, temperatures and feeding schedules play a big part in how fast they will grow. T's kept in the 80s and fed weekly will generally grow faster than those kept high 60s and fed bi-weekly. Also, growth rate can differ between genera of tarantulas. For example, in a year's time, my T. stirmi went from about 1.25" to 5". In that same amount of time, my G. pulchripes went from about .5" to 1.25". The amount of light they get should not impact the growth rates at all. In fact, many species are light sensitive and only come out at night anyway.I've had my G. porteri for 20 years now, and it was a full 7 years between her last two molts. This is a slow growing species, and as adults, they can go several years without a molt. My Avicularia versicolor went about 10 months between its last molts. I would say that your guys are doing just fine. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>