is this hole in the head on my oscar fish?

[fishguy42069]

Just the regular silver arowana, I lost my last one to old age (20+ years old) So Im starting over with a new baby, hes only around 13 inches right now

arowana are one of my favorite fish but i’ve never had a big enough tank the only tank i have big enough is my 150 which is a saltwater with a panther grouper picasso trigger and lionfish

 

[PicassoClown04]

arowana are one of my favorite fish but i’ve never had a big enough tank the only tank i have big enough is my 150 which is a saltwater with a panther grouper picasso trigger and lionfish

I’ve got a 210 for it. Nice wood in there and I’m working on getting it planted. I’ve also got two 10 gallon nanos for beta fish and crystal shrimp breeding which are heavily planted. 45, 25, and 20 mixed reefs