Saltwater Algae Control: The Ultimate Guide | Home Aquaria

Red slime algae are universally hated by saltwater aquarists, mostly because it:
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On a more serious note though, there are a because of which green algae grows which is why it is the most commonly found algae in aquariums that hobbyists encounter on a regular basis. Let’s take a look at some of the main reasons that causes a green algae outbreak in your saltwater aquarium:
There are a few different ways in which red algae can make its way into your saltwater aquarium.
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Coralline Algae is a type of red Algae in the order Corallinales. It is a desirable algae to have in a saltwater aquarium and its growth is an indication of a properly matured marine fish tank. It is commonly introduced into an aquarium by placing live rock into the aquarium. Coralline Algae enters the system as one of the many beneficial “hitchhiker’s” on as well as on the shells of snails. For a full list of see our article, . Hauter, S (1997) Nuisance Green Algae. Identification and Control. Saltwater Aquariums
Photo provided by FlickrAs we saw in our previous post, the Emerald Crab was rated the #1 algae eater in a saltwater aquarium. I wanted to di...
Photo provided by FlickrThat’s a wrap on the ultimate guide to algae control for saltwater aquariums. In this guide you’ve learnt about
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For saltwater tanks a can be crucial to keeping aquarium algae growth at bay. Skimmers are loved by hobbyists because they completely remove dissolved organics and other proteins from the system via the collection cup. These are great tools for nutrient export. Once these items are removed they are no longer a source for aquarium algae growth. Keep your skimmer cleaned and maintain it regularly for best results. And don't try to skimp on the skimmer. You usually get what you pay for.
A refugium can be a great place to keep competing macro algae or plants. Although primarily saltwater hobbyists utilize refugiums there really is no reason why freshwater hobbyists couldn't use a as well. You can go cheap here too. Form a simple aquaclear hang on power filter, to a bucket, to a plastic tote, all make decent refugiums as long as you can easily hook them up to your display tank. Saltwater aquarium keepers often use fast growing chaetomorpha in the refugium to help compete against algae growing in the main tank. Once the chaeto reaches a large size you can prune some of it thereby exporting nutrients from the system. Freshwater aquarium keepers could use fast growing plants to provide a similar service. The plants and macro algae will compete with any algae trying to grow in the main tank and make it harder for algae to grow.
Freshwater aquarium keepers can use aquarium plants to compete for nitrates and phosphates. Saltwater aquariums can use a macro algae such as chaetomorpha. The plants or macro algae will consume nitrates and phosphates and compete with the undesirable algae forms.Coralline algae is a red algae and the pink or purple form is more common in saltwater aquariums. In the ocean coralline algae is found on nearly every reef and in the wild several unique forms exist such as types …To sum up: under stock, feed appropriately, use purified water when your tap water is suspect, perform regular partial water changes, maintain the filter and vacuum that substrate to help limit the amount of foods available to the algae. Keep your water parameters in line with what you are keeping too. For example, saltwater aquarium keepers should try to keep pH in a range of 8.2 - 8.5, sg at around 1.024 - 1.025, calcium at around 420 ppm and alkalinity at around 2.5 meq/L. If you still have a problem with algae growth test the nitrate and phosphate levels. Figure out why these levels are elevated and then fix them. Even after doing all of the above you will still have algae growth in your tank, but it should be much less than before and more easily maintained.Algae thrive when there are plenty of nutrients in the aquarium water. However, when nutrients are in short supply algae growth slows down. Nitrate and phosphate are the two nutrients that we can easily limit in saltwater aquariums. Nutrients enter the aquarium in tap water and through fish and invertebrate foods. If your tap water contains nitrate or phosphate, every water change or top-off feeds the algae! A (RO) filter system will remove phosphates, nitrates and other unnecessary nutrients from the water supply and keep them out of your aquarium. Fish and invertebrate food contains the essential vitamins, minerals and amino acids necessary to sustain corals, fish, and other marine life. It is also a source of nutrients that stimulate algae growth. Feed small amounts of food so none gets sucked into the filter or trapped behind the rocks. Many aquarists have found that fish don’t need a lot of food to remain healthy and colorful. The same goes for corals. Any food that is not needed simply adds nutrients to the water. Try feeding less food and watch the algae disappear!