congrats, aros are great
1. cover ALL sides of the tank
2. beware of strong lighting too close to surface of the water
3. driftwood, peat based filtering materials & blackwater will make him feel right at home (be careful not to let these substances decrease ph and kh too much)
4. WC are a must, at least 20% weekly
5. feed it earthworms, tenebrius, tetra sticks, insects, live fish and dried shrimp
6. ph at 6.8
i wouldnt remove the substrate, just vacuum it regularly, have decent filtration and DO NOT feed it insects from your backyard! unless you are 149% positively sure they havent been sprayed with pesticides.
GOOD LUCK!