Bacteria blooms are when the food is readily available for the bacteria in your tank to grow to higher population levels, hence being able to see the super colony.
I can't remember which type it is, but I believe it is both the nitrosoma and nitrobacter. (Sorry bio-guys probably misspelled)
Both of which are part of your cycle.
To fix it do nothing, it will clear up on its own, by the end of the day, if it is a bacteria bloom
Causes: sugars usually make them multiply like this, it is common when vodka or sugar dosing.
Why sugar or vodka dose? They are means to eliminate nitrates out of the system and make the system more "nutrient poor" esp for SPS tanks.
I read about the vodka (alcohol is a simple sugar) and ran across the table sugar dosing recently.
In short, the sugar is a means of carbon, which the bacteria use and eat up the nitrates. Now, don't quote me on that, it is deep in chemistry and biology details, which I can understand, but didn't want to read the 10 page thread completly. I have enough homework as it is!
Recently, I had a high nitrate level of about 40ppm that I overlooked after adding a bunch of liverock. After doing a 50% and 20% water changes I only got it down to 15ppm. Getting tired of large water changes that involved tap water instead on my usual RO, I decided to try the sugar dosing to see if it worked. Within 24 hours, my nitrates were 0. SInce then my SPS have stopped browning, I have less algae overall, and my cyano is dissapearing. Though, I have been feeding less and added to 820 Seios, and upped my cleaning crew, which could be the result of this. But I digress, that is why I said the bloom wasn't a "bad" thing. I am sure, however that someone who has taken the time to understand the chemistry and biology a little more can give you more details on the bloom, if you like.
If I had to guess, somehow some sugar based substance got into the tank.-Doug
Did you mistake Nerds candy for cyclopeeze?:lolspin: