Red Slime ???

[gregs]

I believe this to be Red Slime algea, and respectfully request comments and feedback on plan of action.
Amonia 0
Nitrate 0
Nitrite 0
ph 8.2
sg 1.022
temp 79
alk 2.5
75g main tank w/ (10/06)
90lb live rock
3-4in live sand
1x Korilina 1
2x Koralina 2
1x Koralina 4
Filstar XP3 Canister w/
Bio Zorb (replaced 10/11/07)
Chemi-pure (replaced 10/11/07)
30g sump w/
fuge - cheato, live rock/sand
protien skimmer
mag-5 return pump
Ro/DI water source
Live stock:
2x Firefish goby
1 med Foxface
2xGold stripe clown
1x Mandarine goby
1x spotted goby
12 or so magarita snails
12-20 blue leg hermits
serpent starfish (not seen since flatworm exit) 50/50 whether it survived the treatment since it can hipe pretty well.
bta
cleaner shrimp
zoo
clam
sponge
acropora
montipora
lobophilia
star polyp
mushroom
kenya tree
Recent History:
Replaced PC fixture with HQI/T5 fixture (9/07) and struggled to maintain temp control for the first few days. Initial lighting schedule was over 12hr/day T5 actinic, and 10hr/day hqi. Started seeing algea outbreak within in about the 2nd to 3rd week. Backed down on feeding (every 2-3 days a mixture of frozen variety/flake) , and lighting to its current 10hr T5, 7hr hqi, but continued to see algea grow.
About 3 weeks ago I pulled some out and discovered I also had a pretty bad case of flat worms. Did a Flatworm exit treatment and now need to refocus on the algea. Have ordered a new Koralina 4 water mover, and 2 new bags of Chemi pure and Phos Zorb.
Any other ideas?
Thanks in advance,
Greg

 

[allenk]

Looks like red slime to me. I had that for quite awhile. When I changed my flow (increased the flow throughout the tank), it went away on its own. From what i've read on this board, this forms in area of low water flow.
I didn't use a phosphate remover, but I know some have suggested this can also be caused by phosphates which is often found in flake and frozen foods.

 

[mcbdz]

How often are you doing water changes? and how much? are you suction as much out as possible with each water change?

 

[gregs]

roughly 20g at least 2 times per month, using ro/di (levenson unit) canisters <8months old. I do suction out as much as I can the last few times, this picture represents about 10 days of growth.