Losing Gonis (Help Needed)

[Tarad.nadeau]

Hey fellow reefers. I am hoping someone may have some insight on my tank. We have had setup about 3 years (this larger tank I transferred everything over about 7 months ago when our old tank started to fail).

We have historically had awesome luck with Gonis, but in the last couple months have lost 2 and now one of the larger ones I have had I just noticed tonight that it was starting to have some recession. This was an aquacultured one we purchased at the CT Frag Farmers Market 1.5 years ago. We recently just lost the other one ina slightly different color bough the same time and same vendor. Extension has been great and honestly they all looked good until they didn’t.

Parameters:
Ph -7.8 (night) to 8.1 range - this should have been similar all around
Alk -9.5 (seems to always be about the same although I dont have a trident yet for monitoring)
Calc - 430
Mag - 1350
Phosphate -0.04- 0.10
Nitrate - 5-10
Dosing Reef Fusion 1&2 with Red Sea doser
in sterilizer
Small bag of carbon
SG 1.025
Using Fritz’s RPM blue

Looking for any help as it is starting to get frustrating (some other corals have had random poly bailout - large hammer colony)

Lost small maxima clam last night randomly too that looked great.


Is this brown Jelly ?? Should I dip this? Hydrogen peroxide maybe in the whole rock given it is encrusting it a bit? Last one that did this I dipped with lugols solution but it is no dead.

I’ve done ICP testing and nothing really stood out too.

 

[RobupstateNY]

I would grab some more water out and send a ICP-MS test instead of a ICP ICP-OES
And see where your metal levels are at, Tin especially.
Then check your ro-di filters for exhaustion and do a large water change not sure of your tank size but 30% or so. Water change never hurts for sure. Good luck

 

[moyangjackwang]

Ah the issues with gonis - classic. I’m no expert with them but I agree an ICP would be beneficial. Since it seems to be an established tank that’s been running smoothly.

A few other questions to maybe help try to triangulate:
- has your feeding regimen changed? Including coral feeding but also fish.
- Do you do any specific trace dosing? The reef fusion you’ve been dosing, is there a new bottle etc. kind of change?
- did you start a new box of salt in terms of water changes? Batches of salt do vary depending on the brand

 

[Tarad.nadeau]

All good questions!

Perhaps feeding a bit less but i always find it if I feed more I end up with algae issues?? Same amount and type of fish food all along.

I don’t do any other trace elements but would anyone recommend doing that? I don’t remember when the issue started vs the new bottle of fusion.

I guess new salt was maybe last time but before that it had been try same box before.