Learning to safely catch your aquarium fish

This guest post about catching aquarium fish was written by the blogging team of Swell UK, a UK based pond and aquarium supplier!

It’s something we do all the time, and at some point you too are going to have to go through the potentially stressful task of catching one of your aquarium fish. This may be for quarantine purposes, for sale or simply to keep them out of the way during maintenance of your aquarium.
For fish, stress can be lethal so keeping stress levels low is important. When a fish becomes anxious for either a large period or multiple times in a short space of time their immune system is lowered, meaning they are more prone to diseases such as white spot, which if untreated can sadly be fatal. All the more reason to perfect your fish-catching skills to do as little damage as possible!

fish net

Using Fish Nets

The first part is obvious: make sure Continue reading

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My visit to Holland Koi Show 2015!

The Holland Koi Show is an event held every year in Arcen, The Netherlands, that centers around koi and aquariums. I last visited it two years ago in 2013 (photos can be found here!) and was lucky enough to be able to go again this year!

There were many things to see and buy, from simple shrimp to $500 fancy goldfish and gigantic koi, and although I didn’t go home with any fish myself I took plenty of photos. Have a look at the gallery below to see them, especially if you’re interested in bettas!

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Happy fishkeeping!

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GreenPleco Plecostomus plush giveaway!

This giveaway has ended. Thanks for participating everyone! You can still buy your own GreenPleco plushie over at the GreenPleco website.

Hi everyone! It’s been quite a while since the last giveaway on Aquariadise, so I’m super excited to announce I’ve teamed up with GreenPleco to give away one of their Plecostomus plushies. 

Plecostomus, or pleco, is a name used for a wide variety of catfish that are often kept in aquariums. Although most don’t actually eat algae, many pet- and aquarium stores sell them as algae eaters! They can be found in many different colors and sizes and GreenPleco is working hard to turn them all into plushies. 

I don’t own any plecos myself, but they are wonderful fish to keep and make great plushies! They are available in many different color patterns and have a suction cup mouth like a real pleco so they can be attached to your aquarium or windows. I had to have one and received a green plush a few days ago.

And now for the best part: I get to give away one pleco plushie to a lucky Aquariadise reader! To participate, subscribe to Aquariadise if you haven’t already, read the rules and leave a comment below. 😀 

  • The giveaway is for Aquariadise subscribers!
  • Leave a comment here using the e-mail address you used to subscribe (e-mail stays private)
  • If you haven’t subscribed yet, you can do so below
  • The winner will be chosen with a random number generator on August 23rd and e-mailed with three days to respond with their address
  • If you have a Tumblr account, you can reblog the giveaway post there for an extra entry!

Good luck and happy fishkeeping everyone!

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Treating fin rot

When the beautiful fins of your previously healthy looking fish suddenly seem to be melting away, it can be easy to panic. It may be fin rot! Luckily this common aquarium fish disease is often curable, especially if you take action right away. Keep reading for more information on what causes fin rot and how you can prevent it as well as diagnosing and curing it if it’s already too late.

betta fin rot

Photo by Melissa

What causes fin rot?

Fin rot, like many fish diseases, is caused by a combination of factors. It’s a bacterial or fungal infection, meaning the “melting” is caused by bacteria or fungus eating away at the fins. Bacteria such as Pseudomonas that cause fin rot are not that dangerous for your fish by themselves and can actually be found in any aquarium. The real danger is secondary infection, such as when the fish rips its (tail) fin or is otherwise injured, for example by other fish. The bacteria and fungus can easily latch onto the open wound and cause it to become infected.
Another huge factor in fin rot is stress. A stressed fish is much more susceptible to any disease and especially fin rot! Stress can be caused by many things, but the main reasons for fin rot are bad water quality and an improperly cycled aquarium caused by overstocking or lack of water changes. Insufficient feeding, bad choice of tankmates, injuries, disease or stress from transport and all other things that cause stress and/or injuries to a fish increase the chances of infection. The oranda below had both dropsy and a case of fin rot on the pelvic fins.

Preventing fin rot

Continue reading

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Keeping fancy goldfish in ponds

Although keeping fancy goldfish in an outdoor pond year-round is not an option everywhere due to climate differences, setting up a fancy goldfish pond even just for the summer can be a fun project. (Temporary) life in a pond is often beneficial for your goldfish when done right and it can also lessen maintenance time for you. Keep reading for more info about keeping fancy goldfish in pond and tips on starting your own pond setup!

Which fancy goldfish types can be kept outside?

You can keep any type of fancy goldfish outside in a species-only pond during the summer if temperatures don’t regularly exceed ~85 °F/29 °C. Please don’t mix your fancies with single tailed goldfish or koi! If you live in an area where temperatures stay above freezing year-round, the fish can stay outside in an above ground or below ground pond the entire time.

Oranda goldfish

Oranda goldfish may do well in ponds year-round.

If temperatures do drop below 32 °F/0 °C but it doesn’t get too cold, there are still a few fancy goldfish types that can stay outside year round in a below ground pond. The pond should have some parts deep enough to not freeze entirely; most goldfish keepers recommend a depth of around 4 ft/120 cm. Fantail goldfish as well as orandas and ryukins have been reported to be able to survive the winter outdoors in moderate climates when proper winter precautions are taken. Be sure to always keep a small portion of the pond ice free; some goldfish keepers with smaller ponds also choose to keep the water running during winter by using a heater.

If you’re unsure whether your goldfish are safe outdoors during winter, I would personally not go for it and just wait until it’s spring or summer again. If you do think you can keep them outside, be sure to Continue reading

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Aquarium driftwood

Adding driftwood to your aquarium is a great way to get a natural look and imitate the habitat of some fish species. Aquarium suitable wood can be found in many shapes and forms and there is a type for almost any biotope! Although adding it can really make your aquascape, there are a few things to consider before running out to the store (or the forest). Keep reading to find out the do’s and don’ts of driftwood in your aquarium and a of list the most common types of driftwood found in pet- and aquarium stores.


Using driftwood in your aquarium

If you’ve found a piece of driftwood for your aquascape, it can be very tempting to try to add it right away. Unfortunately, though, you’ll usually quickly find the wood floating at the top of the tank! Driftwood can’t be added to an aquarium without a bit of preparation.

Because even pre-washed pieces of wood can still contain dirt or loose pieces, a thorough scrub is a good plan. An old dish brush and hot water will work great for this! I also always rinse the wood with some boiling water to make sure anything harmful I missed while cleaning is also gone. After washing the wood, it’s time to solve the floating problem. New driftwood is almost always buoyant until it has been submerged for a while, so if you don’t want it floating around the aquarium you can put it in a bucket with water for a few days until it’s waterlogged. If you don’t want any tannins from the wood to leach into your aquarium water, try Continue reading

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Caresheet: Red Claw Crab

Red claw crabs are very interesting to keep and a very easy impulse buy, but unfortunately there is still a lot of misinformation about their care to be found in aquarium stores and on the Internet. They are often kept in freshwater community aquariums, but their ideal habitat is actually a single species low-end brackish paludarium! Keep reading for more information about keeping red claw crabs and setting up a suitable home for them.


Perisesarma bidens, red claw crab, red clawed crab, mini crab. They’re also sometimes still referred to as Sesarma bidens.

Natural habitat

Red claw crabs are naturally found in mangrove swamps in Asia. In these estuaries, rivers flow into the sea, creating a mix of fresh and salt water. The water is quite shallow, temperatures are tropical and the ground is usually covered with fine sand. This gives us some great guidelines for what a red claw crab paludarium should look like!


With a size of no more than around 4 inches (10cm), red claw crabs stay smaller than some of the other crab species available in aquarium stores, which is why they’re sometimes referred to as “mini crab”. Males are Continue reading

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