Fahaka puffer,
No test kits
its a 350g system composed of 2 tanks and 1 filter sump
1. Main tank is 250g houses a 13 inch dovii and 2 large bala sharks, those fish has been there for 2 years
2. 100g tank below. houses the 2 day old Fahaka Puffer
It's only 2 days. However it needs decor it can hide and feel safe in. Water parameters I assume are good. I say give it time and add decor for it to hide in if you don't already
i got him a bunch ro rocks, and some friends, 5 shrimps, 5 tiger barbs, 2 angel fish, 20 black tetras... he better be active like a puppy in the next few weeks or he goes to the FS section