Hair Algae - The price of not maintaining your tank
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Photo by: vincent.limshowchen
I try to maintain and keep the equipment in my 75gallon tank clean and in good working condition. The problem is, doing this takes time and while I do my best to make time for it, I slacked off the past 3 weeks or so. I have 2 Hydor Koralia pumps to maintain sufficient flow for my corals, an Eheim ECCO canister filter for running phosphate remover and carbon, and an AquaC Remora protein skimmer.
The Hydor Koralia pumps are easy to clean, just a quick scrub to remove any algae and build up and then back in the tank. The canister filter is fairly easy as well and requires a simple scrubbing and replacement of the phosphate removing media. I add carbon to it about once a month. Running carbon too often or all the time can remove necessary elements from your tank. You should only run carbon for about 24 hours and only as needed (i.e. when your water starts to smell bad).
The equipment that requires the most time to maintain is also the most critical item, the AquaC Remora protein skimmer it’s a bit of a mess so I tend to avoid doing it. I avoided it too long this time, and I’ve paid the price.
Hair algae outbreak!
I had a huge algae outbreak some months back as a result of not maintaining proper water parameters. I work diligently to get the parameters correct, purchased a bunch of Turbo and Astrea snails and even a Lawnmower Blenny to help. I diligently did weekly water changes and kept my skimmer clean and running very wet (keeping the skim cup low to catch more organic material). Within a few weeks the hair algae disappeared completely, my tank was beautiful.
Then, I slacked off. I started doing bi-weekly water changes, and not cleaning the skimmer as often…boom, hair algae again! This time, it’s far worse than the first outbreak, and it’s everywhere!
The first problem was a low dKH (alkalinity level, thus low PH). I resolved this my adding Kent Marine Superbuffer. I got the dKH up to 12 and the PH to 8.1.
I then went to clean out my skimmer cup and it wasn’t even close to full, so I lowered the cup to wet skim. The next morning I checked the cup, as under circumstances it would be close to full when wet skimming. Again, almost empty…hmmmm. Checked the pump, it was fine…then it dawned on me that I hadn’t clean the skimmer or it’s venturi value in a few weeks. The light bulb comes on. Second problem, skimmer wasn’t pulling out enough organic material from the thank, thus fueling the hair algae growth.
Zero phosphates doesn’t mean there aren’t any
Phosphates are caused by organic material decomposing in the tank, and serve as the primary source of food for nuisance hair algae. Once you have hair algae growth though, your phosphate levels are generally going to show zero, leading the inexperienced hobbiest to think they don’t have a phosphate problem. Wrong! This just means the algae is consuming it all.
Sure hope this does it
I cleaned out the skimmer, added a new bag of phosphate sponge to my canister filter, did a 25% water change and scrapped the sides of the tank along with vacuuming the sand bed. It will be a few days before I’ll be able to tell if it’s making a difference, but sure hope I begin to see that yucky green stuff begin to turn brown!
I’ll keep you posted!







May 25th, 2008 at 11:34 pm
I’ve had algae problems in my freshwater tanks when I end up neglecting them for weeks on end too. It’s a strange thick, dark, rubbery sort that covers the survace of the plants, and I can never get rid of it now it’s there.
May 30th, 2008 at 8:28 am
It took me two years to get rid of hair algae out of my 200 gallon freshwater tropical community tank . Then duckweed came along and that took another year to remove !
All during that time the fish seemed quite happy . And in that connection, can you advise please ? I’ve had 10 clown loaches in my tank for 8 years and they look stunning - how long do they live ?
May 30th, 2008 at 11:02 am
Hi Jim, fresh and salt algae are real different, but have one thing in common…hard to get rid of.
Clown Loaches can live 15+ years if well cared for. I never had much luck with them, so congrats for keeping them that long!
July 1st, 2008 at 10:53 am
Any update?
September 7th, 2008 at 1:59 pm
A follow up to all the algae problems. It strictly comes down to proper water quality. It shouldn’t take more than a few weeks to see an improvement in algae problems if the problem with the water quality is taken care off. You will have to do some manual scrubbing to remove the existing hair. I have spoke to many people who use tap water. First huge mistake. You can not keep a saltwater system running smoothly with tap water without spending tons on mechanical and chemical filtration to counter the bad water you are introducing to your tank. And in my opinion mechanical and chemical filtration are a last resort to maintaining a healthy saltwater aquarium. With the proper amount of live rock to give the bacteria a place to grow and a quality distilled water you will not have algae issues. One of the other big problems I see on a regular basis is the number of fish for the size of the aquarium. I know that I promote natural filtration but to remove the waste your fish will produce you need to have a properly sized protein skimmer. This is one area you do not want to skimp on. Buying one bigger than what is recommended is the way to go.
September 7th, 2008 at 3:23 pm
@fastduc - I agree, it’s all about water quality. The hard part is maintaining good water quality. I’ve been thinking my problem was phosphates for the past 3 months now. After doing some more reading I found out it could be Nitrate’s too. I turned off my canister filter just trying to eliminate causes and boom, hair algae died off.
It’s just about gone now and I’m working on an article update about Nitrates as a cause of Algae.
I definitely agree about having to manually remove it as I’ve spent the last few days picking off balls of hair algae as well.
September 23rd, 2008 at 3:01 pm
What is the easiest way to et rid of green hair algae
September 23rd, 2008 at 5:57 pm
@jON- Hi, I just wrote an article about this. You can read it here: http://www.saltwaterblogger.net/green-hair-algae-gone/