Pond Fish - Spawning Mop

Spawning mop. These were used for spawning of Spotted Gar in Louisiana. I think that they are pom poms.

I used twine and a rock to anchor the mops. The mops are tied a different depths. The fish spawned like crazy in these mops. The only bad part is I don't know who the parents are. Next spring I will isolate pairs with the same setup.
This is my hatching tank and fry raising tank. The mops are covered with embryos. I started with a low flow but learned that a lot of crud and debris accumulates on the mops and embryos so I turned up the flow and periodically shake out the mop.