Tropical Fish Keeping - Aquarium fish care and resources

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sergiotami 03-06-2009 02:38 PM

Purple Algae?
I have this hair like purple algae on my live rock..Is this normal? My tank is three months old and I've been using "Purple Up" to get purple algae to grow.....

Kellsindell 03-06-2009 02:54 PM

That's cyano bacteria. you need to reduce your feedings and facume that stuff out of the tank and blow it off your rocks and get that out too. The reason you have cyano in the first place, is because your nutrient lvls are really high, that's why you need feed less.

how much sand do you have (inch wise).

sergiotami 03-06-2009 03:25 PM

Thank You for the response...

Its a 90 gallon Oceanic with 1" of aragonite sand and 120 lbs live rock.

Couple of questions?

I'm was feeding twice daily, what do you recommend?

What the best way to get it out?

Kellsindell 03-06-2009 03:33 PM

You need more flow in that area, the only reason you're getting that is because of lack of flow. the way to get it out is use an airline tubing (maybe 1/5in in diameter) and suck it out. Do you have any anthias? what type of livestock do you have in the tank? what are you feeding, in what portions?

Purple up encourages the growth of coraline algae and encrsts and doesn't look like hair.

sergiotami 03-06-2009 03:48 PM

Will readjust my two Koralia #4 to increase the flow in that area..

What an anthias?

I have: two small ocelaris clowns, 2 peppermint shrimp, 1 camel shrimp, 2 yellow tail damsels, 1 Two Spot Bristletooth Tang, 1 Haitian Reef Anemone.

I have a 30 gallon sump with an Aquac protein skimmer.

I'm currently feeding "Hikari Marine S" pellets, a pinch in the morning and evening...

Kellsindell 03-06-2009 04:31 PM

then you can decrease your feedings to once every other day or every 3days. check your nitrates and phostphates and post the results and i can go from there.

onefish2fish 03-06-2009 04:43 PM

more information on the tank please.
ammonia, nitrites, nitrates, pH, temp, SG, phosphates if you can, cal, alk, mag, type of lights, how long are they on, what other equipment? any filtration besides the skimmer? corals? anything else you can include?

i would def. cut back on feedings. if your not running phosban you may want to start.

i see you use pellets. i suggest offering a mixed diet. if you use frozen foods pre-rinse it by putting it in a net and container before adding it to the tank as the water they get frozen with is very high in phosphates.

sergiotami 03-06-2009 05:20 PM

Thank You for the help...:) I have was using a Berlin sock in my sump, but took it out, should I put it back in? I also have some liverock in my sump.....No corals... Whats Phosban? I'm also using a T-5 lights..

Ammonia- 0
Nitrites- 0
Nitrates- 5.0
Temp- 79 degrees F
SG- 1.025

I dont have any PH strips, but will get some tonight, as well as phosphate test kit... This is my first salt water tank, so I really appreciate all the feedback...

onefish2fish 03-06-2009 05:22 PM

i suggest using a liquid test kit over the test strips as they arnt very accurate.
how often did you clean the filter sock? this may be the root of the problem.

phosban is a phosphate remover that you put inside of a reactor.

sergiotami 03-06-2009 05:27 PM

Will get the liquid test kit as suggested....

I removed the sock a week ago, but clesned it weekly before I removed it....

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