[Aquarium Co-op CO2 regulator manifold issue]

It's the knob on the bottom of one of the bubble counters that doesn't slow the flow. The secondary pressure gauge works fine. With pressure equal one of the bubble counters can not be tuned and let's too much CO2 thru while the other works correctly.

[Aquarium Co-op CO2 regulator manifold issue]

All of a sudden my CO2 manifold that came with the reg lets a ton of Co2 thru even when I turn it all the way down. The expansion manifold that sits between it and the tank still works fine. I have taken it apart and reassembled it and did not see anything obviously wrong with it. Any ideas about what I could try?

[Camallanus Red Worm?]

Recently lost an otto and when I found him he had some red in the area of his abdomen.  Yesterday I noticed some red on the belly of another. Just concerned it might be Camallanus but do not have any experience with it. 

Ph- 7.8

Nitrates- 10-25 ppm

Hardness- 150 ppm

Nitrite - 0 ppm

Ammonia - 0 ppm

KH - 180 ppm

Water Temp - 78

[CPD- Bloat or disease or over reaction]

Thanks!

[CPD- Bloat or disease or over reaction]

 

One of my cpds has gotten a large belly. She is much wider than any of the others. I tried to get a photo of her girth but couldn't get one in focus.I don't think I have seen her without poop barely protruding from her. I've not been able to see her defecate and have never seen her with string of poop trailing from her. I went on vacation and did not feed for 4 days and there has been no change in her appearance. When I do feed i feed extreme krill flakes, frozen baby brine or Hikari micro pellets she eats well. She is still active but I'm afraid she's going to pop everytime I feed the tank. It is possible she is eating cherry shrimp fry but I've never witnessed it. Not sure if she's bloated or maybe parasite releated. Any input would be appreciated.

[What is this?]

Thanks for the help @Colu & @Daniel

 

[What is this?]

Found these little white things on the front glass of my aquarium today. The appear to pulse or contract every once in a while or sway with the current. Not sure if I should be concerned. 

 

[RCS dying]

Aquarium has been set up for around 4 months.  RCS were introduced around 2 months ago. 

[RCS dying]

Found a dead shrimp yesterday and then again today. I have included pictures of the dead one from today. Did a water change Monday and water parameters have been stable. Any advice would be appreciated.