i forgot to post this photo from a couple of weeks ago when Melev was here. he slept in with the boys.
the doors over the tank are almost completem just a bit of trim to complete. they have the same reflective stuff on the tank side as the rest of the shaft.
I have removed sand on the high flow half of the tank about 3" worth, leaving 3" of original sand and covering with the 1-2mm sand about 2" and then a 1" pea gravel sized aragonite over that. It is not blowing around any more.
Starting to get diatoms on the new substrate, still having cyano around the tank. It is making lots of O2 bubbles, at least I don't think it is just the surge bubbles sticking to it.
Some algae is growing on the ATS. Interestingly there is more growing in the tank on the pipework around the top of the tank in the surge zone. I guess I can/should harvest that too.
Also got all the aiptasia out of the overflows.
I have turned off the Ca reactor about a week ago and today picked up a couple hundred pounds of the various salts to dose with. pH has risen to 8.3+
For now I am dosing only with the sodium carbonate instead of bicarbonate.
Today I got soda ash which I believe is the right stuff. I got an analysis sheet and it is pretty pure but can have some arsenic in it. Yow! Should I worry about that?
It is really hot here yesterday and today with records set. Air temps to 93 here. The tank got to 94.7 yesterday and 93.5 today. that is about the hottest it ever gets here and only for a day or two. we just opened the windows and doors. No AC. I was gone yesterday until evening and I hadn't opened the skylight yet. It is open now and today was hotter than yesterday but the tank was cooler.
I told another reefer that today and he freaked out. I told him it is hotter than that for weeks in the tropics. I hope I was right about that. I am not worried. I will set up a fan or two to blow across somewhere or other when it gets hot again.
PAR values are very high in the tank. 1700-1800 for a few hours in parts.
Some of the corals, not acros but others seem a bit pale. The Platygyra, elegance is shrunken, Favia has gotten pale over the ridges of the corallites. Should I shade the tank or could it just be the heat or both?
I brought up the Ca, Mg, and alk levels over a few days to just above NSW levels except alk is 12dKH. PO4 is 0.06 ppm.
Carl