Hi there.
Wayne messaged me calling me over here.
Congrats on adopting Padma. Firstly, I'll say she looks more like a young HE. You can check for bb's on either side, right below the vent. Males have them, females dont.
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On to answering your questions,
Bonding and trust building is just going to take some time. Many of the "youtube" tegus are under heated and poorly fed. Many of them are also adults who have already completed the grumpy puberty stage.... The owners before you probably didnt know about that so they had different expectations. Your guy/girl should be coming out of the puberty stage now and you will most likely see a change just from that. Continued interaction, as well as tong feeding. Some people will disagree and feel that tong feeding makes them associate you with food, and to bowl feed is better. I have not found that the case as tong feeding my guys is a great bonding time and I have even tamed some seriously defensive guys while tong feeding. Theres the T-shirt trick, of wearing a Tshirt around for a bit to get your scent on it and then placing it in the enclosure for them to get used to. Tub soaking. I'm iffy on this one trick. Many people swear by it and the tegu community tends to think that soaking is nessicary for hydration and sheds. I dont soak mine, but in times that I have I do notice they drink the water and it helps get shed off toes and tail. Soaking a tegu is okay, its not as bad as soaking a monitor. lol The reason I dont soak mine is because they hate it, they thrash and try to get out of the tub. Its more of an individual thing. If yours likes it (some do!) then use it to your advantage and sit next to the tub with your arm extended in, to get her/him used to your touch. You can also sit in a small room, like a bathroom and let her/him crawl over you and get used to your presence. Tegus are very curious and will mostly likely have no problems coming to investigate you and crawling over your legs saying hi. More than anything, it takes time. They definitely bond with their owner and do seek attention but it call comes with time.
As for pomegranates... I dont have an answer for that. I don't know.
Wild caught fresh fish is fine. All those you listed are fine for consumption. I just recommend freezing for 48hrs to kill any active parasites. Keep them a whole prey item, so just cut them up and feed bones,skin, head and all rather than filleting and only feeding muscle.
The rub mark on the nose is very minor and should disappear within a shed or two.