Go.t a pair of puffers they are currently small and I've added them to a new tank it's been three days since I added them to their new environment and they are not eating their food. One them is active and keeps on pushing against the glass whereas the other one keep so lying on the substrate like a lazy hag is something wrong with them.? And they turn black sometimes. I did not add salt yet because I don't know what salt to add and how much to add it. This picture was taken when I feed it.
