I don't recall what size of enclosure you have but my boy is about 300 grams in a 20 gallon and I'm afraid more then that would just freak him out as his size lol. When reaches about 500+ grams I plan to upgrade him to a 40 gallon (That is if I don't cave and get a rack system by then lol)
Strangly where I live the Petsmarts are better then Petcos. The enclosure just seem better and they keep the snakes seperatly where as at the petcos they just bunch them all together and I've stumbled upon dead and dying animals more then once whereas at PS they seem overall pretty healthy, but I'm sure this is more due to the people working there and not the company as a whole lol. My case is no doubt the exception not the rule! None are worst then a small chain called Pet Supermarket here though >-< Regardless I agree you will for sure have to come to terms with the fact that you won't be able to save or change everything and that can be very disheartening. I'm sure there is good you can do there just make sure to be prepared for heartache
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