Hey everyone. So I've built my DIY bio pellet reactor some months ago and it has been working pretty good. I only has half a bag of pellets in the reactor and it was barely tumbling. The reactor is supplied by a quiet one 4000 and now that I added the rest of a 100g bag of tlf bio pellets it is not tumbling at all. I can see the water going through and all the pellets are moving. But it's just like they are vibrating with the water and not tumbling like I know they should. The tube is 4" diameter and about 14" tall. (Go big or go home) Pic below. The pipe that supplies the water goes down to about 1/4"- 3/16" off the bottom of the reactor. I'm at a loss because I would think that the pump I'm running should have enough flow. Is there just not enough pressure coming out the bottom? Does it need to be more of a jet. Oh the plumbing is 1/2" PVC. Thanks for the advise in advance.