Thunder Spears?

I'm trying to beat the first room in Hive Water and it's literally impossible. I saw that the mobs are weak to thunder, but I can't seem to find any thunder spears other than Thrundacrack/Feedback.

Are there any other viable spears I can use to clear this room?

 

i h8 water, i dont know to many thunders spears, but u could ask someone to help

 

If you can't beat the Atlantis Kelps in this room, you just plain won't be able to get past the Pristine Maidens a few floors later. It's obvious that you need to train up or team up instead.

Aside from that, just add some thunder powders to a weapon if you're that desperate to play on a weakness.

 

Feedback
Cue Stick
Cloudbreaker
Crack the Skies
Glitchtean
Heart Piercer
Scythe
Thrundacrack

 

And as for new items not on the guide yet,

Shokku
Shade of Night(powder boost)
Spear of Sin(powder boost)
Sharpened Harpoon

 

Thanks for the support everyone. I'll be sure to keep a Sharpened Harpoon next time I get it.

As for the difficulty problem, the only reason I cannot get past the Kelps is simply because they heal themselves every 5 or 6 seconds. I'm sure my weapon is feasible for the rest.

 

DUH DUH DUH. Get me to help, I am a thunder mage who can heal you and shrek those mobs.