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e-book What is a Refugium

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Would there be adequate water flow? Would the macro algae gracilaria in this case slip out of the top of the power filter if the flow was too fast? What could we do to lower the flow rate if necessary? Turns out, the flow was just about right in our opinion. Maybe it could be a tad bit faster. To prevent the gracilaria from slipping into the tank, we created "shark teeth" see photos below out of some old plastic extenders from an old glass top that we never used and then used aquarium glue to affix it to the inside lip of the power filter.

It works fairly well, although some gracilaria slips through sometimes to the delight of the Tang. If we just had chaeto in the fuge it would probably be fine without the shark teeth since it stays wound together pretty well. For lighting we bought a galaxy desk light that has a screw on clip that attaches nicely to the back of the refugium. It came with a 13 watt power compact light and it works well. The gracilaria seems to be growing well and starting to crowd the chaeto. In the next few days I will be moving the gracilaria to a separate 10 gallon tank and leave the chaeto in the refugium.

We also added a few small pieces of live rock in the bottom of the aquaclear hoping that maybe some other organisms may start growing on the rock in the fuge. We did not add any sand to the refugium, since that would have involved further retrofitting of the aquaclear to prevent blowing the sand back into the tank.

Sumps or Refugiums? – The Love Aquarium

The flow starts from the bottom and goes to the top in this power filter. Adding sand would have been a nice enhancement but we were more interested in what the macro algae would do. It's been just a couple of weeks at the time of writing this article and besides the growth of the gracilaria, I don't really notice any difference in diatom growth or other algae growth inside the tank. Nor do I see any differences in water test results of nitrates , phosphates, calcium, alkalinity, etc.

The chaeto seems to be the same size and maybe it's getting out competed by the gracilaria?

How to Set Up a Refugium: Harvesting Macroalgae To Control Nitrate and Phosphate

We'll find out if the chaetomorpha grows faster when we remove the gracilaria from the refugium. Truthfully, it really is too soon to tell if this refugium is really going to be worth it. I'll post an update in a few weeks on this page. Toggle navigation. Numerous saltwater forum posts on using the AquaClear power filter as a refugium. Refugium Setup Comments Show Comments. They are a ceramic media that is full of tiny holes and passageways throughout each piece. They are extremely porous and provide an enormous surface area for Anaerobic Bacteria to colonize, just like in the Deep Sand Bed.

These, however, do not trap detritus like a Deep Sand Bed. These are my recommendation for a refugium substrate. Bare Bottom — Many Reefers like to keep their Refugium clean and have no substrate. The use of just Live Rock and a ball of Cheato is enough for them.


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While doing weekly maintenance they just blast off any settled detritus on the Live Rock using a turkey baster and that is all. Cheatomorpha Click to see more at Amazon. It is a fast-growing, high nutrient-absorbing plant. It grows into a thick mass similar to Wire Wool which creates a great habitat for growing Pods Microfauna. Caulerpa Click to see more at Amazon.

It is fast growing but will stick to your glass and Live Rock. It can come in many forms; Ferns, Grasses, Grapes etc.


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This plant, however though can stop reproducing and release the nutrients back into the water. Be sure to keep harvesting it to encourage it to stay sexual. Mangroves Click to see more at Amazon. Used with sand or the mud, they grow fast and are one of the most recognized aquatic plants in the wild. Just insert, let them grow and keep salt creep off their leaves and they are happy. No disposing of them. There are many, many types of marine algae you can add to your refugium with great results. Above are the most popular within our hobby.

Refugium Education

Microfauna are microscopic creatures that grow and populate with your aquarium and Refugium. You will see these little critters scurrying around or swimming, especially at night. A healthy microfauna population is a great thing to encourage in your system! Copepods Click to see more at Amazon. They range from 0. Copepods are great for consuming plant matter, decaying fish waste and nuisance algae such as diatoms. It is all they eat and they consume Pods at a rate of one every 5 seconds, if they can find them! Amphipods Click to see more at Amazon. These guys also feed on algae and detritus and help to reduce Nitrates in doing so.

These are good meaty meal for any passer-by, they breed fast and are a great addition to your Fuge Pod Community! Rotifers Click to see more at Amazon. Their diet of dead and decaying matter make them a super janitor in all those microscopic places in your aquarium system. Phytoplankton Click to see more at Amazon. Because they are plant based they photosynthesize so they consume Carbon Dioxide and expel Oxygen when subjected to light. They are fed on by the organisms listed above as well as filter feeding corals within your aquarium. This algae grows quick and does not stick to the glass.

The algae that sticks to your rock and glass is a form of Microalgae. As the algae grows, you harvest and remove half of the ball or mass of Cheato and dispose of it. What you have now done is allowed the Cheato to consume the nutrients used by the nuisance algae and then physically removed them from the system. The Cheato now has more room to grow again and consume more nutrients. The Microfauna side of the Refugium is allowing these tiny organisms the space to reproduce without being picked off by fish, shrimp, crabs, and corals.

dom1.kh.ua/images/rencontres-de/7990-rencontre-meetic.php Think of this as an organism factory. If you can keep a steady stream of organism growth, you will have tiny critters constantly working on cleaning the water, aiding the beneficial bacteria in your biological filter and then finding their way into the display tank as free food.

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No, you do not! There are many successful saltwater aquariums out there that do not use a Fuge. Many argue a Fuge is not required and they may be right. BUT, there are many, many experienced aquarists out there who disagree. I for one am an advocate of installing a Refugium because of the benefits it does bring.


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