help!! Growth point RTN slow

[qazpoi]

HI

there are 2-3 sps growth point RTN slow in my tank. growth point alaways silk

Montipora Floweri and birdnest also can't keep 1 week in my tank,but other

types is OK. someone can help me please ??

kh 8 ca 420 mg 1320 po4 0.05 25c-26c i am small tank in 35 gal

Are the problem no3 untable ? NH3 ? K? zeolite?

 

[CUNAReefer]

I'll take a stab at this one... From what I understand, you are having STN (Slow Tissue Necrosis) at the growth edge of your coral. Although your params seem fine, have you tried dipping your coral to see if you have flatworms or some other pest? Flatworms can eat away at the zooanthallae, which will ultimately cause a STN or RTN (rapid tissue necrosis) around the growth edge. Can you post pics?

Warmest Regards,
James

 

[qazpoi]

thanks james
but i dont see any flatworms

 

[qazpoi]

Montipora Floweri and birdnest can keep 1 week and RTN in 1-2 day,but Growth point blong STN

 

[CUNAReefer]

thanks james
but i dont see any flatworms
View attachment 130192

View attachment 130193

I agree. The flatworms are almost invisible to the human eye. Over the past 11 years I have been keeping coral reefs, I have seen many critters that seem to be invisible... Now, there may be another culprit. Sometimes your corals will STN if the flow is not sufficient. I have seen many corals STN because of this one factor. Corals do not need PERFECT conditions, but they will show signs of stress if a pest is present.

Have you ever dipped your corals? I reccommend CoralRX. It does cause some corals to bleach (personal experience), but it is worth it.

Warmest Regards,
James

 

[zabonyuzu]

Thanks !!!
i put a STN sps in freshwater,but i cant find flatworms.
i will notice flow,but i think it is not the problem
Can you find another reasons?

i use zeolite,have possible K not enouth?

What will happen in K not enouth??

 

[neoalchemist74]

Phosphate at .05 is too high should be below .03.

 

[CUNAReefer]

Phosphate at .05 is too high should be below .03.

But would it be for SPS dieoff? Not likely. It would cause SPS brownout, but not die off.

 

[CUNAReefer]

Thanks !!!
i put a STN sps in freshwater,but i cant find flatworms.
i will notice flow,but i think it is not the problem
Can you find another reasons?

i use zeolite,have possible K not enouth?

What will happen in K not enouth??

If your worrying about K your worrying way too much! This should be handled with frequent water changes... unless you are a trained SPS keeper. Dont dose. Dont pray. Dont do the SPS dance. Just change your water on a weekly basis. If your SPS still hurt... Dip. If Dip doesn't work... look for little red bugs. Check out CoralRX. It DOES work. Monti eating nudis' do take a little more work with the CoralRX though.

Good Luck,

James

 

[qazpoi]

If your worrying about K your worrying way too much! This should be handled with frequent water changes... unless you are a trained SPS keeper. Dont dose. Dont pray. Dont do the SPS dance. Just change your water on a weekly basis. If your SPS still hurt... Dip. If Dip doesn't work... look for little red bugs. Check out CoralRX. It DOES work. Monti eating nudis' do take a little more work with the CoralRX though.

Good Luck,

James

thank you James

Can i ask you another question?

If N-circle is abnormal and carbon is used to overdose,it will cause stn?

i should take them out??

My tank have N/P Bio-Pellets carbon zeolite

 

[CUNAReefer]

I'll be honest here and say I don't know. I do not have any experience with "N/P Bio-Pellets carbon zeolite." I've always been an advocate of keeping it simple. All I use to keep a healthy reef are weekly water changes, lots of good flow (my tank turnover is somewhere around 70 times per hour), kalk dosing, bright T5 lighting, and a Ca Reactor. If you tried dipping your corals and do not find any pests then your off to a good start to finding out the reason for your rtn. I was just rereading your initial post and re-examining your pics. I'm kind of embarrassed that I haven't even thought to ask you about your equipment. That should have been one of my first questions. Could you please provide some details as to what lighting, skimmer, etc. you are using. One more question... Do you have a glass top over your tank? Ok, one more question do you have a sump?

Warmest Regards,
James

 

[qazpoi]

OK! please forgive me first that my grammar is poor.
My tank is about 30gal. I use big skimmer which can deal 2000L up.
Ca Reactor,Phillips 10000K t5*6 20000K t5*2 use Independent reflector.MP10.
I have keep dKH CA MG in Definite value. N/P Bio-Pellets and zeolite is only help to assist keep no3 and NH3 in Low value
By the way,I dont konw what sump and etc meaning