Eric Borneman (5/25/2009)
Carl - you lost part of it, and the other part looks like it is recovering. I would break off those parts without tissue. I'm also starting to wonder about your use of the coastal water. You have too many things going right to have these odd and relatively inexplicable periodic problems and I am not convinced that the water isn't the issue (for things tested AND untested).
i hadn't done a water change for about two months before you were here. i went the next weekend and got water. so the timing of this incident would probably have coincided with just after the water change. i did the water change at the same time i removed the sand. i haven't done another one since. right now i still have about 800 gallons and am running it through a gallon of carbon in preparation to do another water change tomorrow.
i have also not been able to keep most acros from dying mostly from the tips down. this has been ever since i set the tank up.
the free NSW was definitely a positive factor in deciding i could afford the size tank i did.
if i changed away to ASW do you have a recommendation to a couple you like?
i just recharged my DI unit and was getting 5ppm TDS, however when i tested it for PO4 i got 0.20ppm
i don't know what i am doing wrong with the recharge procedure.
i also thought maybe it was my carbon leaching PO4 but when i soaked it for two days in the 0.20 ppm DI water it came back lower in PO4 after two days of soaking. not much but 0.18ppm, which i think is within the statistical variation of the Hanna C200
do you think that was a good way to test the carbon for PO4 leaching?
here is an Acro tate didn't make it. it died over a week or so about a week ago so a couple weeks after the incident. it had been looking good for several weeks.
this one was also doing well until the time of the sand and water changes.
and yet another acro is finally starting to grow after being stagnant for probably almost a year. it is in a deeper part of the tank when it has rocks on both sides so only gets direct light for less time than most.