Can I just hack this guy off??

[banditpowdercoat]

I have a HUGE Toadstool leather, Goten to big for the tank. Blocking the OM4 flow from 2 of the outlets. I've read that you can just cut a toadstool to frag them, but I don't want to frag him. I just want him smaller. Can I just cut the stem, say 6" up from bottom, and throw the rest away?

Here's a pic