Millepora's RTN for no reason

[Devin98]

Hi Everyone,

Something strange is happening. I have 6 different millepora's in my system and about 20 Millepora frags. Strangest thing is starting to happen there is a very very slow RTN that is starting at the base and slowly progressing. The Milli's seem very happy good PE great colour. When I frag and remove the RTN they re-encrust and seem fine. I examined there are no pests in the tank all other corals are doing fantastic 30 different SPS.

SG - 1.026
CA - 410
dKH - 9
Mg - 1350
P04 - 0
N/N/A - 0

Lighting is 8 bulb T5 on a ATI fixture, flow is great have a Tunze Wavebox plus Korella's.

Tank is a little over a year old and my Millepora's have had tremendous growth over this time. Most grown from small frags to full colonies.

Any ideas?

 

[bogg]

potassium? Might want to go through everything also cross check your test results with other kits. Anytime I get stn rtn it seems water changes help out.
How big are the colonies?

 

[Devin98]

I dont normally test for Potassium. I was concerned with my test results so just picked up new Elos test kits to confirm.

Colonies range from 4" across to 8" across.

 

[MHG]

For me I get RTN when my dkh hits 9

 

[Devin98]

For me I get RTN when my dkh hits 9

Really? I have always kept it at 9 without any problems until this week. I can try bringing it down to 8 to air on the side of caution.

 

[Devin98]

Should also mention that I have many "sensitive" SPS like Red Dragon, Purple Dragon, RR Avenger, Plana, Desalwii colonies that are doing just fantastic!

 

[Allmost]

hmm, not sure if I understand the problem ? you had a frag of millie, it was STNing from base up, then you fragged it, and its now fine ?

are there are Issues right now ?

 

[Allmost]

Should also mention that I have many "sensitive" SPS like Red Dragon, Purple Dragon, RR Avenger, Plana, Desalwii colonies that are doing just fantastic!

and you should sell me frags of those hahah

 

[Devin98]

hmm, not sure if I understand the problem ? you had a frag of millie, it was STNing from base up, then you fragged it, and its now fine ?

are there are Issues right now ?

All my Millie colonies one by one are starting to STN from the base once I remove the base and remount they encrust and seem to be fine.

During this time I am still getting a ton of growth and great PE.

 

[Devin98]

Here are some photos from what is happening this morning.

Green Millie I have had and grown from a single stick frag (9 months) the Blue/Green Millie frag is fairly new only had it for a month or so.

Sorry for the poor picture but you can clearly see the STN at the base.

 

[Allmost]

check for crabs.

the first millie is prety bleaches and starving.

I still do not understand if this was a Issue you had in the past or still do ?

is this ISsue in your frag tank and when you put it in display it encrusts ?

do does it just encrust after fragged ? in which case, Id frag them all haha

 

[Devin98]

The colour is a little off as it was taken under Fiji Purples (early morning) When I had crabs before (I know sounds bad) they never really attacked the base I would normally see flesh removed from the branches. I will take another peek to see what I can find.

I had to take down my display for a renovation project so all my corals are in my 150 gallon frag system. The display has been down for over a year. Hopefully the 300 gallon is up and running in the new year!

-Devin

check for crabs.

the first millie is prety bleaches and starving.

I still do not understand if this was a Issue you had in the past or still do ?

is this ISsue in your frag tank and when you put it in display it encrusts ?

do does it just encrust after fragged ? in which case, Id frag them all haha

 

[Devin98]

just fragged everything that was RTN going to try a water change tomorrow (need to make salt water)