Fish Tank Ornaments, Plants and Gravel>The Web address you entered is not a functioning page on our site. Go to Amazon.co.uk's Home PageSubstrate is a must in most aquariums. Not only does the correct substrate create an ambient and natural environment for your fish, but it is also paramount in encouraging good bacteria colonies that aid in the biological filtration in your aquarium. We offer a wide range of substrates, ranging from naturally coloured gravels, sand & corals, to more eccentric & colourful. Whatever you have in mind for your perfect aqua-scape, warehouse aquatics is sure to have something perfect for your fish. Items 1 to 15 of 62 total BiOrb Aquarium Pebble Pack - Large, Black Marble Large solid marble pebbles for decoration or to cover the ceramic medi... BiOrb Aquarium Pebble Pack - Large, Red Marble BiOrb Aquarium Pebble Pack - Large, Green Marble Biorb Feng Shui pebbles can be used to decorate your aquarium. Caribsea Aragonite Oolite Sugar Sand 13.63Kg Marine & Reef

Caribsea Aragonite Oolite Sugar Sand 30lb / 13.63kg Caribsea Aragamax ... Caribsea Fine Grade Cichlid Complete 9kg Aquarium Substrate This substrate is both mineralogically and biologically complete. Caribsea Tropical Black Sand 9kg For Freshwater & Marine Caribsea Black Sand is a great way to accent brightly coloured tropica... Caribsea Tropical White Sand 9kg For Freshwater & Marinefish tank heater gumtree Caribsea White Sand is a great way to accent brightly coloured tropica...fish tank gravel types Caribsea Arag-Alive Bahamas Oolite 9kg Aquarium Reef Sandfish tank sydney cbd Only CaribSea's Aragalive contains not just the broad spectrum of natu... Caribsea Arag-Alive Live Special Grade Reef Sand 9kg

Caribsea Arag-Alive Live West Caribbean Reef Oolite 9kg Caribsea Ocean Direct Caribbean Live Aquarium Sand 9kg Simply Natural - Enjoy this real Caribbean live sand in a breathable b... Caribsea Ocean Direct Caribbean Live Aquarium Sand 18kg Caribsea Eco-Complete Live Planted Substrate 9kg Black Caribsea Eco-Complete Planted Aquarium Substrate is one of our most po... Caribsea Arag-Alive Live Fiji Pink 4.5kg - Marine Aquariums Caribsea Arag-Alive Live Fiji Pink 9kg - Marine AquariumsA man could not believe his eyes when a giant bobbit worm akin to a sea monster emerged from behind a rock in his fish tank  - after hiding there for two years.The ghastly creature is captured slithering its way between rocks after the man spotted it while he was cleaning the aquarium's filthy glass. It is not clear how the 1.2metre worm found its way into the tank but it is common for such creatures to hide in the live coral sold to pet owners. Lurk: The bobbit worm rears its ugly head after emerging from behind a collection of rocks in the aquarium

Slither: The 1.2metre worm makes its way along the side of the glass tank by arching its body up and downAfter capturing the worm in action the man posted the clip, which is filmed in the U.S, on YouTube where it has been watched over 173,000 times.Maroon coloured with small spiky tentacles along the side of a long ridged armoured body, the worm cuts a striking figure as it glides through the murky water.It looks more like a creature you would expect to see attacking a crew of intrepid sailors in a science fiction film, than swimming in a fish tank.At one point you can even see its tail slither away, seemingly having a life of its own, despite being cut off just before the film begins.After making its way along the glass wall of the aquarium the worm then heads to what looks like the tank's fan and begins to move its way inside.Bobbit worms, or Eunice aphroditois as they are scientifically known, are ambush predators who have been known to eat fish and coral.Originating off the coast of countries such as Indonesia and the Philippines, they often hide in rocks and use light and chemical receptors to lunge at their prey.

Mysterious: Bobbit worms are found off the coast of Indonesia and pictured, it shows its colourful underbelly Giant: The worm glides through the murky water of the aquarium after hiding in the tank for two years Shelter: The giant worm slithers up to a fan-like object in the aquarium and begins to weave its way insideGurutek who posted the video said he had first noticed the worm after his coral began to rapidly disappear.He said: 'I was breaking down the tank (as I was moving it), hence it looking shoddy. That unice was in there two years before I noticed, and only noticed because I had whole coral colonies missing after a single evening. 'I first saw it after I spent a few nights sat up (after lights went out) for about 3 hours per night looking for the critter who was eating my corals. 'Even when I knew it was there, I only ever saw it 3 times within the space of a year. It hides in the rocks, and only comes out at night, impossible to catch without taking everything out the tank.'

Bobbit worms, or Eunice aphroditois as they are known, are lunge predators that lurk between coral and rocks to attack their prey from a sheltered position.The worms have two pairs of eyes at the base of their antennae but do not always use them to hunt.Instead they use light and chemical receptors to identify when the best time is to attack their prey.Bobbit worms also have powerful jaws, often mistaken for claws, which can rip prey in half when teamed with their ability to attack at great speed.Nocturnal creatures, the worms have previously found their way into fish tanks or large aquariums by accidentally stowing away in live coral.Due to their instinct to only come out at night, owners don't tend to realise that they are there until large chunks of coral, which they also eat, or fish start to disappear.Bobbit worms are often found off the coast of countries such as Indonesia and the Philippines and some have been known to grow up to nine ft-long.Gravel, sand, specialist planting substrates - there's a lot of choice out there when it comes to what to put at the bottom of your tank.

Matt Clarke answers some frequently asked questions about aquarium substrates... How should I clean my substrate before I add it to my tank?Although they're often pre-washed, most substrates are very dusty and need to be cleaned thoroughly before they're used, otherwise the tank will turn extremely cloudy.Washing dusty gravel or sand is messy, tedious and, in winter, rather cold work. The best way to get the substrate clean is to place a small quantity (say a few mugfuls) in a clean bucket and spray water on to it using a hosepipe.You'll need to keep swirling the gravel around with your hand, and pouring away the dirty water until it runs clear. Then you can tip the washed gravel into another bucket and clean the next batch.Some substrates don't respond well to being washed in this way, so the more you swirl them, the dirtier the water gets.Powder-coated coloured gravels are a particular irritation here, so you may as well just get rid of as much of the dust as possible and then just give up, or only swirl very gently.

Laterite substrates are impossible to wash...How much gravel do I need to buy?This is harder to work out than you might think, because although sold by weight, it's the depth (or volume) of the substrate that really matters to us fishkeepers, not the weight.For sand, most people go for a depth of around 2.5cm/1", but with gravel the norm is to go for a deeper layer of say 5cm/2" or more.The weight of a litre of dry substrate varies from about 1.95kg per litre for fine sand to just 1kg per litre for baked clay substrates. To work out how much you need, simply determine the volume you require and multiply it by the weight of a litre of the substrate of choice.I've added coloured gravel to my tank and the pH has risen. Many coloured gravels, particularly the rough textured angular ones with a powdery colour coating, are made from white dolomite. This is a naturally occurring mineral rich in calcium and magnesium, and in its uncoloured form is sold as a substrate for use in marine or Rift Lake cichlid tanks to keep the pH, alkalinity or hardness high.

If you already live in a hard water area, or keep fish that don't mind alkaline conditions such as goldfish, it's not likely to cause any problems. However, it wouldn't be a great choice at all if you want to keep fish that like neutral or soft water - you'll need an inert substrate instead.How can I keep my substrate clean?The easiest way to keep the gravel clean is to regularly use a gravel cleaner. In my experience, the battery- or air-powered varieties are invariably much less effective than the cheap, heavy duty syphon-powered ones. The heavy duty Hagen gravel cleaner I bought nearly a decade ago is still going strong, so these are remarkably good value gadgets. I use mine to vacuum my substrate once each week and my tanks always looks clean.How do I use a gravel cleaner?Syphon-powered gravel cleaners are designed to remove dirt-laden water from within the substrate when you're doing your partial water change each week. The power of the syphoning water causes the gravel grains to swirl around inside and sucks the dirty water out, but leaves the substrate behind.

Once you get the hang of it, you should be able to vacuum most of the tank floor while only removing about 20-30% of the aquarium water, which you can then top-up with dechlorinated tapwater.You can start a syphon-powered gravel cleaner in several ways. Since I have inadvertently inhaled several lungfulls of foul tasting aquarium water in the past, I personally prefer not to suck on the end of the hose to get the syphon going - although this is undoubtedly the quickest and most widely used method among fishkeepers.To start the syphon more hygienically, put your thumb over the end of the hose and submerge the gravel cleaning attachment in the tank on its side. If you quickly scoop up some water inside the attachment and allow it to fill the hose by temporarily removing your thumb a couple of times, you should end up with both the attachment and the hose completely filled with water. Then all you need to do is simply lower the hose end over a bucket and release your thumb. The water should start flowing on its own.

Some substrates are very coarse. What diameter should I go for?The gaps, or interstices, between gravel grains increase as the grains get bigger, so more dirt may get trapped in the substrate if you use a larger grain size. In contrast, very fine substrates, such as sand, don't allow much dirt to be trapped, so detritus tends to sit on top, where it can be sucked into the filter or syphoned off.Some fish, including many common species like goldfish, feed by sifting the substrate and eating any food items found within. Many catfishes, like Corydoras, and some oddballs such as rays, eels and mormyrids such as elephant noses, also like to root about in sand.How can I replace my substrate with something more attractive?The easiest way to remove the old substrate, without the need to strip down the tank, is to simply syphon it out. If you find a suitable pipe (you'll really need one thicker than the average gravel cleaner hose), you should be able suck up the substrate, the dirt and some of your water.

You can then carefully add your washed substrate to the tank and top up with dechlorinated tapwater that matches the temperature of your tank. The snag with this method is that you sometimes need to remove a lot of water in order to suck all of the substrate out.You might need to top up and wait a few days before removing the rest to avoid stressing the fish by changing too much water in one go.Alternatively, you could try removing the remainder with a net.That white coral sand could give my tropical tank a really marine look. Is it safe to use?Not unless you want to make your water rock hard and increase the pH of your water to over 8.0. Coral sand and gravel is calcareous, so you should only use it in situations where you want the pH and hardness to be kept high. Many Rift Lake cichlid hobbyists use it to provide the appropriate conditions for their fish.Those in very soft water areas, such as parts of Scotland, also use small amounts to stop the pH of their aquaria from dropping naturally, something which occurs due to the lack of buffering in their water.

How deep should my silver sand be?In freshwater tanks, generally only a thin layer of sand is used, since it is so fine that it tends to stagnate if used in a deep layer. About 2.5cm/1" should be plenty in most cases.I've added an expensive plant substrate. Can I still use a gravel cleaner?If you use a gravel cleaner in a tank containing a costly planting substrate, such as laterite, you risk sucking it out. If you've got a professional-style planted tank, chances are you'll be dosing with CO2 too, and you'll have a lower stocking density, so this shouldn't be too much of a problem.What is an inert substrate?Inert substrates and rocks don't alter the water chemistry, while non-inert, calcareous substrates do. These contain calcium and other minerals that increase the hardness and pH, so if you add them to your tank they'll make the water harder and more alkaline.Inert substrates are of particular importance to those keeping fishes that like soft water, such as Discus. Even standard pea gravel contains sufficient calcium to boost the pH and hardness, so don't use it unless you want hard water.