I’m having a problem removing the endcap from my icecap 1k propeller cage. I don’t have an extra endcap and I’m trying to set this up with just one side. I’ve looked at coral cue and it seems to me at least the 3k endcap is supposed to pop easily off. I for the life of me I can’t seem to budge the cap on either cage. Is this possible on the 1k? Any tricks or tips?