So my baby beardies are almost old enough to go to a new home, (2 months) and on person who wanted one of them said they now want 2.. She was wondering if a 70 gallon tank would be enough for the two of them throughout their life? and she was also wondering if she has to have 2 females or if because theyre clutch mates, if she could possibly have 2 males? im also curious how old they have to be to check their gender, only one is big enough for me to be certain of his gender, im checking the gender by holding a flashlight above the tail and by looking at the "lumps"