Carbon in reactor gone.... Water issue?

[Pastronomer]

So I think I'm a bit of a spanner and had the flow too high in my reactor, which I'm fairly sure pulverised the carbon and it's somehow vanished from the reactor.

With this in mind I assume it's now in the water column of the tank. Will this cause water issue?

I'm having horrendous luck with LPS right now and trying to narrow things down.

 

[Randy Holmes-Farley Verified Community Expert]

I don't know if it is a problem or not.

Did the LPS issue recently start?

 

[Pastronomer]

Ive struggled with some LPS for a while but I came home from a work trip to see a, what I thought was healthy, Hammer lost one of its heads. A brand new Blasto is shrinking away and one of my old previously puffy lobos is showing a small amount of skeleton.

The only thing is I've had a phosphate spike (to 0.2ppm) so I'll renew the rowaphos today, otherwise water parameters are correct and stable, ICP done about 6 weeks ago was perfect and I've done little to the tank since.

Softies are thriving naturally, as is my alveopora and newly added goni.

I don't know if it is a problem or not.

Did the LPS issue recently start

 

[Randy Holmes-Farley Verified Community Expert]

If the coral issues coincided with the GAC use, or very slightly later, it may be an issue.

How long ago do you think the GAC last disappeared? Do you have a skimmer?

Trying to determine if a wter change is worthwhile

 

[Pastronomer]

If the coral issues coincided with the GAC use, or very slightly later, it may be an issue.

How long ago do you think the GAC last disappeared? Do you have a skimmer?

Trying to determine if a wter change is worthwhile

I don't use a skimmer, no. I actually dose NO3 as the bioload is so low it requires me to do so.

The tank is a Waterbox 20 cube, using a D-D reactor hanging off the back, it's a bit industrial but works well historically. I've always used carbon in the back but the latest brand I used (Reef Zlements) is a lot finer than previous brands and I assume it ground itself down and deposited the dust through the water column.

I've never had much luck with brain type corals, in fact the Lobo I've got is the best I've ever managed, but seeing a healthy hammer bailout was a bit of a shock.

I'll do a water change anyway, even 10-20% won't hurt.