Hello,
My tank recently went developed a bloom of green algae which accumilates rather quickly on my glass. Cleaning it only results in it returning to cover the glass within 30 minutes or so. I assume this is because it's not being removed from the water and only reattaching itself to the glass, sand and rocks.
Today I woke up so see my Kole Tang suffering from ich and my Yellow Tang is starting to develop white spots as well. I did not have time to set a quarantine tank this morning, I'm hoping to do so once I get home. I'm limited on what I have and my LFS is closed today.
Could the ich be a result of the blooming algae? Perhaps the fish were stressed from too much algae? Also, one of my T5 bulbs is an 18,000K bulb. Do you think lowering the bulb to a 10,000K bulb will help deter the algae and still be enough light for some inverts/anemones? I noticed that when the lights are off at night, the algae does not form to the glass.
My last questions are will a UV sterilizer and chemi-pure help this? I'm running a larger canister filter (Rena) and am not able to run a sump below for an overflow set up or a protien skimmer in my condo. This limits my filtration, so I'm relying purely on flow, mechanical filtration, live rock and live sand.
Water quality is good, Nitrate and Nitrite are zero, salinity is 1.023, PH is around 8.0 - 8.2 I believe, hard to tell with the test kit I have and/or strips.
I raised my lighting hoping to deter the algae, we'll see when I return home. Not sure what to do about the ich though. I don't want to use copper.
Any thoughts?
Thanks.