Extremely urgent!!!!
I recently bought a big discus which my Arowana approx 15cm started attacking so I tried to catch the Arowana in a net to move him to another tank which failed because he's so quick and there are so many obstacles in my tank so I tried catching him with my hand but when I caught him my index finger went through his skin and into his stomach
I had barely even applied pressure when I caught him PLEASE HELP I LOVE HIM SO MUCH 
I recently bought a big discus which my Arowana approx 15cm started attacking so I tried to catch the Arowana in a net to move him to another tank which failed because he's so quick and there are so many obstacles in my tank so I tried catching him with my hand but when I caught him my index finger went through his skin and into his stomach

