My greyhounds didn't seem to like dog parks but my galgos love them. I'm very careful to take them during off hours and I leave if it becomes crowded. I agree with waiting a while before taking your new dog. Get to know each other first.
He keeps stealing Iker's food after he finishes his own. Iker's a slow eater and is very cautious while Xavi is still the ultimate street dog. I've tried feeding them in separate rooms, but Iker won't eat without Xavi. Iker is so strange.
I tried this mixture with Xavi at NeylaMom's suggestion and it seems to have helped. Additionally, my vet was impressed that the exact same drugs and dosage could be purchased for a lot less at the store than from her clinic