Marine

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Reef safe fish for the marine aquarium

Swell UK Blog Fish Tank

A pristine reef full of fish and corals looks idyllic, but alas many (very desirable,) fish species are there to eat corals or other fish and will do the same in the home aquarium. Here are some of the best reef safe fish.ChromisGreen Chromis aren’t everyone’s idea of an exotic looking tropical marine fish, but add a shoal to a large reef tank and collectively they make for a wonderfu...

How to set up a reef tank

Reef aquariums are one of the most amazing items we can own. They are essentially a piece of furniture, although they contain a diversity of colour and life unrivalled by any other pets and we get to observe a slice of the pristine tropical ocean from the comfort of our own homes.Reef aquariums are so named because we decorate them with fish and invertebrates that naturally inhabit corals ree...

The five biggest issues in reefkeeping – solved

Selection of tropical fish

Reefkeeping isn't always as easy as ABC. The perfect reef tank involves work, dedication, the right equipment, patience, and money! Every tank has issues, but they can all be overcome with the right advice from the start.AlgaeAlgae affects all ponds and aquariums but that hard, alkaline water, bright surfaces and really bright lighting mean that it affects reef tanks the most. The first ...

How much flow do I need in a reef tank?

It is said that although some corals survive without light, no corals can survive without flow. Water flow brings corals their food and washes away their waste. They also use currents to reproduce, releasing eggs and sperm into the water column which travel around before settling and finding a permanent home. So flow is one of the fundamentals of a healthy reef aquarium. A reef aquarium ...

How to get rid of brown algae in a reef tank

Brown algae can be a plague that ruins the look of a reef tank and can cause the owner to pull their hair out. It’s most common in reef tanks under six months old, and it is algae, kind of, but it can’t be solved the conventional way. If it was lush, green algae, the prescription would be to add an army of algae-eating livestock from hermit crabs to snails, seahares to foxface, algae ble...

What eats flatworms in a reef tank?

Flatworms can be a pest in reef aquaria and if left alone they can multiply and reach plague proportions. Here’s how to control them.FishMany wrasses eat flatworms and of them, the sixline or pyjama wrasse is one the best. Its stays small is reef safe, cheap, and widely available. It doesn’t often jump out like many wrasses can and can be housed in smaller reefer tanks too. It’s als...

The six best marine fish for new reefkeepers

Selection of tropical fish

Choosing marine fish can be a minefield, with most of the desirable ones like puffers and butterflyfish being unsuitable for reef tanks. Here's the Swell UK Guide to the best marine fish to start your reef tank with.Six line wrasseThe six-line wrasse stays small, is hardy but also performs a useful task in the reef aquarium, eating pests like flatworms. Every reef tank needs a wrasse to k...

Which substrate do I need for my marine tank?

Part of the appeal of a marine aquarium is the bright coral sand base that transports the viewer to a beach on a tropical island. Those white tropical sands are actually coral sand, tiny fragments of long-dead coral skeletons and shells which have been worn down into sand-sized granules.Its coral sand that you need for your home aquarium too, not normal beach or play pit sand as that contains...

Three easy to keep SPS corals

Swell UK Marine Coral Advice

Heres the scene. You’ve been keeping marines and running a reef tank for six months now and everything is going well. You’ve got high spec LED lighting, wave-making pumps and your KH, calcium, magnesium, nitrate and phosphate are all as they should be. You’ve got a mix of soft and LPS corals and they have their polyps extended and are visibly growing. Now its time for the next step. Now its...

10 Easy soft corals

Set up a reef aquarium and your lfs will quickly steer you towards soft corals. “Softies” are generally easier to keep than hard corals, less expensive and more tolerant of tanks where parameters aren’t buffered on a daily basis. They’re not always the most colourful corals but they make up for it in growth and movement. They’re less likely to die too!The soft corals we keep are pho...

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