hoplias lacerdae

Hi everyone! Wondering if I could get a couple answers from others on here. I was thinking H. Malabaricus but the more I see the less confident I feel . H. Lacerdae maybe? There is definitely a black line down the side . The big throw off for me is the dorsal fin actually has a dip in the middle...

Was playing around with slow motion on my phone and here are the results, let me know what you guys think :). The lacerdae: The tarpons:

I'm new to wolves guys, I've never had them and I recently got suckered into getting a 7.5" Hoplias lacerdae, green from a buddy of mine (he got it form wes a couple of months ago). My question is: Can I keep this guy with a VATF of the same size..? I tried searching, but since there are soo...