Hey all. I was having issues with my first SPS' (6 different Millipora's from two different reefers) showing no color and no PE. After testing for
Phosphates and
Nitrates, I found that my
Phosphates were .1 and
Nitrates were 5.
Nitrites and
Ammonia were 0, and all other parameters are good. I added the Two Little Fishies Reactor about a week and 1/2 ago, and am running Phosban.
Phosphates are now testing at 0, although I'm sure I still have
phosphates, but they must have lowered enough that the test kit isn't registering them.
I've never had any bad algae problems. No hair algae or bubble algae at all.
All of a sudden, I noticed on Thursday, that I have what appears so be algae growing on some parts of my rock, and I can see small spots of it appearing on some of the purple
coralline. It looks like a deep red/maroon velvet. I also noticed some green circular spots about the size of a dime and a nickel on the overflow that I never noticed before. My overflow has some purple
coralline algae on it. Not covered by
coralline by any means, but it's starting to get
coralline on it. Is the green circular spots on the overflow more likely an algae, or a green
coralline?
I'm not concerned about the green algae on the overflow, but curious if it's
coralline or algae? The purple
coralline is still present on the overflow. It's the red velvet on my rocks that concerns me. It's not a big problem at all right now, just some on a few parts of the rock, but I want to nip it in the bud before it becomes a problem.
I shut off my lights for two days this weekend when I went away, to see if the red velvet would disappear off the rock. I've seen some big
cyano problems on the sand at my
LFS, and this looks nothing like that. Doesn't look like anything that you could siphon off. Literally looks like a dark maroon velvet on the rock only. I have seen what looks like a red dusting on the back pane of my display, so maybe it's a different form of
cyano? I've had for a couple months, what looks like
diatoms on the sandbed. A dusting of brown. I would siphon off the top layer of sand when doing a waterchange, but the
diatoms would return in a day or two. I'm sure this was because of the
phosphates that I didn't even know I had. (phosphates were testing 0 until about December). After shutting off the lights for two days, I came home last night and the sandbed looks super clean. No sign of
diatoms at all. Glass also looks super clean, and it's normally pretty dirty after I've been away for a couple days. I know the lights off was the reason for the clean sand and glass. I don't see that the lights off had any affect on the red velvet algae and green algae or green
coralline, whichever it is, on the overflow.
I'm now rinsing my frozen mysis and other frozen foods, which I wasn't doing before last week, stopped using flake, and added the
phosphate reactor 10 days ago, so hopefully, I'll nip these algae problems in the bud before they get out of control. I've used the Spectrapure Maxcap
RO/DI since day one. I'm wondering what's causing these new algaes though? One thing I did, was started increasing my
MH lighting period from 5 hours a day to 6.5 hours a day ( increased by about 30 minutes a week), per the suggestion of someone that is supposed to be a SPS guru. Trying to get them up to 7 hours. I'm thinking the increased lighting period of the
MH could have caused this new red velvet algae. Four
T5's are lit 10 hours a day. I also thought the new algae might be my bulbs getting old. My
T5's are about 10 months old. I thought they just needed to be swapped at a year. My 150w
MH bulb is about 8 months old.
Any thoughts? Thanks! Pam
Tank has been set up for 11 months.
53 gallon display 7 gallon
sump
Spectrapure
RO/DI unit. Filters and Membrane 11 months old.
TDS is about 135 coming into
RO and 0 coming out before it even hits the
DI.
10% waterchanges faithfully every two weeks.
Salinity 1.025
Calcium 400
Magnesium 1250
PH 8.3
Alkalinity: 8 dHk
Nitrites and
Ammonia: 0
Nitrates: 5
Phosphates, down from .1 to 0 since adding a phosban reactor 10 days ago
Temp: 80f
5 fish and 1 Sabae Anemone. Longnose Hawkfish, 2 Perculas, 1 Yellow Coris Wrasse, 1 Firefish.
1 Scarlett crab, 1 small Emeral crab, Approximately 10 Large and Small Nacarrius, 8Ceriths and 6 Astrea snails, 3 bumblebee snails
