Post by naclh20nut on Sept 24, 2009 6:11:03 GMT -5
This is a new thread from the general board. I have checked chemistry and the PH was @ 8.2 in the evening after being @ 7.8 in the morning. Can this cause death. I have not checked it in the AM before. All other tests were normal, amm,trite,trate- 0, alk-9, cal-480.
Need help I have had some of these since our first swap this year.
The pH swing is a little wide but may not be the issue. Temp fluctuations can also cause this problem. This issue can be caused by a variety of factors. Can you give more detail on how the coral died? Fast/slow, base up/tip down, pale, browned out etc...
Last Edit: Sept 24, 2009 20:41:54 GMT -5 by ADMIN2
Post by naclh20nut on Sept 24, 2009 23:02:04 GMT -5
Base up one took about 4 days to go up 4 inches and it turned bright white as it went up. a couple of weeks later one went about 1" in one night bright white and then by morning was gone about 4 inch piece. then there was two small 1/2" pieces that are just tan/white. I still have a 8" stag,6"orange monti,8" red monti, 2" birdsnest and a 2" fuzzy hiller?. They seem to be doing just fine
It sounds like to me you have had both RTN and STN happen in your tank. RTN is when a coral rapidly loses tissue and dies, within a few hours. This occurs usually because of a fast change in environment, ie temp issues or very high pH. STN is more common for people to deal with , it usually happens over time due to lack of alkalinity. It can also occur because the coral is not receiving adequate flow. STN usually starts from the base up. It can also be a sign of high phosphate. If the coral has a green base after it STNs it is a sign of a phosphate problem.
Also PH was low not high. Unless going from low to high during the day can do that.
One day of high pH could cause RTN. I dont think this was the problem though as you use two part as your dosing regiment. I also do not think cleaning the glass caused your problem. Since it seems to have happened over a few months I would say it is probably flow related. As SPS get bigger they need more flow.
I am sure there could be other reasons for the problem but usually low flow or low alk will cause base up recession. How big is the tank? What kind of flow do you have in the tank and what is the total turnover minus the return pump.
Last Edit: Sept 26, 2009 19:08:07 GMT -5 by ADMIN2
Seems like you should have enough flow. Do you think the korallia are leaking voltage? I have heard that a lot of people have trouble with those pumps. If you have stray voltage in your tank it could be the problem.
Post by naclh20nut on Sept 27, 2009 9:00:38 GMT -5
Headed out the door but all SPS were in semi direct flow from one of the pumps. Also temp is about 2-3 degrees AM to PM, and Cal and Alk try to keep stable- cal add at 400 and alk stays above 8 and never seen it higher then 12( months ago on the 12, now about 10)