manbetx3.0最新Hair Algae Happens
manbetx3.0最新Algae Happens.manbetx3.0最新Even the types that we don't want in our aquaria–and actively try to eradicate (like hair algae)–can gain a pretty good foothold from time to time.manbetx3.0最新This isn't necessarily the worst thing that can happen… After all, every "bad" algae species occurs naturally in the wild and serves some important ecological role.
manbetx3.0最新That being said, most of us really hate the sight of algae proliferating in our reef tanks.manbetx3.0最新This is for good reason, as benthic algae (aside from a few crustose forms suchmanbetx3.0最新coralline algae) do not growin abundanceon healthy coral reefs.This sparsity is due in part to the nutrient-poor nature of shallow, tropical marine waters!it is also partly due to the heavy presence and high diversity of herbivores there.
manbetx3.0最新Hair algae is a particularly troublesome type of nuisance algae as it is extremely ugly, fast-growing, has the capacity to overgrow/kill desirable sessile invertebrates such as corals and is exceedingly challenging to eliminate.manbetx3.0最新Algae species belonging to several genera are designated as "hair," but most cases involveDerbesiaspp.Being as it is virtually everywhere and loves typical aquarium conditions, it will probably find a way to grow in your tank–a nearly inescapable aspect of reef keeping.But you don't have to keep bleaching everything and starting over from scratch nor do you have to settle with green wooly gardens.You can control this!
Hair today, gone tomorrow
manbetx3.0最新The first step in hair algae control (as it is with all nuisance algae) is maintaining low concentrations of dissolved nutrients such as nitrate andphosphate.manbetx3.0最新Without fertilizer, algae simply cannot grow!
By all means, go ahead and use high-quality chemical filter media for this.But don't underestimate the power of old-fashioned water changes.To ensure the make-up water is nitrate/phosphate-free, mix your saltwater only with purified water (i.e.nottap water).The more frequently you perform water changes, the healthier your tank will be.That's an indisputable fact.And there aren't a lot of indisputable facts in this hobby.
Adding the right community of herbivores for a reef tank can be trickier.manbetx3.0最新This is mostly because different algivorous species are best for controlling different species of algae.manbetx3.0最新Actually, some commonly used algae-eaters might not even look at hair algae.manbetx3.0最新Thus, preventing/controlling hair algae outbreaks with the use of herbivores requires some forward planning, particularly with respect to species selection.Thankfully, many of these (as those below mentioned) are available ascaptive bred!
The best place to start is at the bottom, so to speak.Among so many other good things, benthic (usuallyharpacticoidmanbetx3.0最新) copepods are excellent at helping to curb benthic algae growth.For this, a combination ofTisbeandTigriopusworks well.
manbetx3.0最新Snails are a tried-and-true solution for algae removal.However, not just any snail will do.For example, whileTrochusspp.manbetx3.0最新snails are great at keeping the tank panels clear of film algae, theymanbetx3.0最新kind of suck at clearing hair algae from rocks.Actually, not very manyaquarium-hardymanbetx3.0最新snails are good at eating hair algae–too many species prefer cooler water, can't right themselves if they fall over, or are just plain wimpy in a captive environment.A great exception here is thecerith snail.MostCerithiumspp.manbetx3.0最新snails that are available in the trade not only readily consume hair algae but alsoeat detritus.Really, at least at this time,ceriths are probably the most underrated aquarium snailout there overall.
manbetx3.0最新There is probably no saltwater aquarium invertebrate that eats hair algae as reliably as a sea urchin.A few sea urchin species of note are the pincushion urchin (Lytechinus variegatus) and the blue and red tuxedo urchins (Mespilia globulusandMespiliacfglobulus, respectively).Both of these are attractive and lack the long, potentially injurious spines of other commonly traded aquarium species.manbetx3.0最新And, to say the least, they are voracious algae-eaters.manbetx3.0最新More specifically, they mow hair algae like they're mowing the lawn.
manbetx3.0最新There are quite a few fishes that will nip hair algae in the bud.Most typically,tangsand certain blennies are used for this purpose.However, if you find these blennies too ugly and don't have a large enough tank to properly house a tang, you still have a (very) attractive option: The court jester goby (Koumansetta rainfordi).manbetx3.0最新Captive-bred specimens of this peaceful, pretty little fish are known to include algae (specifically including hair algae) in its diet.manbetx3.0最新A colorful fish that will eat hair algae in your nano tank!
Crunching numbers
manbetx3.0最新There is no single, ideal biocontrol for hair algae.In other words, a well-balanced community of select herbivores does a better job than any one species by itself.For example, larger herbivores can rid a majority of an algal patch quickly, but the smaller ones mop up the crumbs, helping to prevent regrowth.
Again, in terms of the sheer algal biomass they consume in Nature, copepods are the ultimateherbivore.manbetx3.0最新Copepods are indeed the one algae-eater that you simply cannot have too many of.manbetx3.0最新However, they can't keep up with hair algae alone.This is because they're not as equipped to munch at the long, mature, grown-out filaments!rather, they need help from other grazers that chop it down to size.Copepods primarily slow its spread/return by feasting on the trimmed "stalks" or on the tiny, newly settled gametophytes.
manbetx3.0最新"Hairier" hair algae growths are best tackled by larger inverts.Again, certain snails work well for this.However, one must avoid overdoing snails.Too many snails vying for the exact same food source could mean eventual snail starvation/death, with the resulting decay spurring new algal growth (and some pretty unforgettable odors).Best to stick to a snail or two per gallon and leave some of the work to an urchin!
manbetx3.0最新Yes, urchins too can eat all of the hair algae.manbetx3.0最新But if there is any concern about a sea urchin running out of food in the tank, you can easily offer it supplemental feedings of algae wafers or a piece of macro from the ‘fuge.manbetx3.0最新Unless we're talking about a huge tank with a huge algae issue, one urchin should be enough.
It is even easier to supplement the diets of fish, as they are in general quite omnivorous.Captive-bred court jesters, for example, accept a wide range of items including many prepared foods.
manbetx3.0最新When it comes to controlling hair algae, proactiveness is key.We advise taking the initiative and doing everything to boost pod populations as much and as early as possible.Add a few ceriths as soon as you begin stocking with fish.And include herbivorous fish species!manbetx3.0最新If your algae-eating fish cannot keep up with hair algae growth, help them out with a sea urchin sidekick.So long as you maintain consistently high water quality (i.e.manbetx3.0最新low nutrient levels), a group of herbivores such as this will be more than sufficient to keep your tank free of runaway hair algae plagues.
Patrick Hilliardsays
manbetx3.0最新The problem is the most common hair algae in the supply today is a hair Bryopsis species.Bryopsis uses all four feeding pathways, so it will thrive long after everything else has starved due to zero nutrient levels.This enables it to grow without photosynthesis, in the dark.And manually pulling it is the most effective way to spread it all over the tank.It produces noxious, mildly toxic chemicals that affect both herbivores and nearby corals negatively.And the only known chemical which is both reef safe and effective at killing Bryopsis is Fluconazole.Doing some deep research into the durability of Bryopsis and doing an article on your results will help many people dealing with this now very common invader.manbetx3.0最新The above article is helpful for most other algae, but Bryopsis certainly deserves it's own article covering the specifics of it's eradication.The above methods are completely ineffective when dealing with it.