That Fish Blog – Aquarium Advice and Information

Anyone who keeps a koi pond in cooler temperatures has been there. You start getting a few warmer days in late March and your koi, who had been inactive all winter, begin to swim around and look for food. Being the “good” koi keeper you are, and just an all around nice person, you start feeding your hungry friends almost immediately. The feeding continues to increase, while your pond continues to get greener. Meanwhile the local garden store is getting in a load of excellent looking Asagi or Shiro Utsuri Koi direct from Japan next week, and though you already have a questionable number of little Koi in your 1000 gallon pond, one more couldn’t hurt, right?

Pond keepers are creatures of extremes and it’s nothing we’re ready to apologize for (I mean, koi are soooo cool!). But, from a biological balance perspective, it’s really easy to start tipping the scale in your pond in favor of algae and unfavorable health conditions, particularly in the cooler weather.  

Believe it or not, koi in an outdoor pond do not have to be fed to survive. Being the scavengers that they are, they’ll have no trouble finding the nutrients they need among the detritus, bugs, and general wild things that end up in your pond throughout the season. What this means to you is everything you add to the pond, whether it be more fish, fish food or plants, adds to the nutrient load. In early spring, this nutrient load is particularly important for several reasons. First, your beneficial bacteria are not yet running full steam. This means ammonia takes that much longer to break down. When you combine that with the fact that your fish, and their immune systems, are still in slow motion due to the cooler water temperatures, a high nutrient load can cause problems. In addition, the natural “nutrient sucker-uppers,” your aquatic plants, are also struggling to gain a hold for the new season, so that part of your natural filtration is crippled as well.

Many koi keepers than ask, how can I get around this problem? I love my pond and I’m not going to stop feeding my koi, and I’ll probably add more fish to the nutrient load from time to time because they’re too awesome to pass up. Our response to you: avoid the extremes. Be sure to have the necessary test kits on hand to make sure levels remain nominal throughout the season. If you start to see problems, just like in an aquarium, try a water change, or add some bottled bacteria to help the chemistry settle. If your pond starts to get cloudy or full of algae, try adding more plants, or cutting back a few feedings. If you’ve tried all of these solutions and the problems are not going away, it may be time to consider a larger filter system or (gasp!) trimming your koi stock a little.

Good luck with your pond this season!

Jason here. Working at That Fish Place, I have many people ask me about bottom feeders that they can put into a tank with their African Cichlids.  Since cichlids tend to be aggressive, it can be difficult to find suitable tankmates.  A great solution to this problem is adding a Synodontis catfish species. 

There are many species of Synodontis that grow to various sizes.  Synodontis are great because they are often found in many of the same locations as the cichlids. One of my personal favorites is Synodontis petricola, often referred to as Pygmy Synodontis among hobbyists.  They are a relatively small, in comparison to the other members of the genus, maxing out at around five inches.  This catfish is native to Lake Tanganyika, in Africa, which is part of the group of lakes commonly referred to as the African Rift Lakes and has a pH ranging from 7.0-8.5.  Their coloration is usually brown with black spots.  Their fins are black with highly defined white trim.  Dietary choices consist mostly of meaty foods, but they will also pick at algae from time to time.

Another excellent choice for those with an Afican cichlid tank is Synodontis multipunctata, also from Lake Tanganyika.  In their natural environment, their preferred pH ranges from 7.8 – 8.5.  They have a similar appearance to the Pygmy Synodontis, only with less defined white trim on the fins and a larger max size, as in the aquarium they grow to approximately 8 inches in length.  They prefer tanks with a lot of dark places to hide out.  Like the petricola, they are omnivorous and are known to pick at algae along with their main diet of meaty foods.  They can usually be found under the common name Cuckoo Synodontis, though petricola also shares that common name.

Our most commonly sold Synodontis is a tropical species that tends to swim upside down.  It gets its common name, Upside-Down Synodontis Catfish because of this odd style of swimming.  Its scientific name is Synodontis nigriventris.  Unlike the prior two catfish noted, this one won’t do as well in with the African Cichlids, but makes an excellent addition to tanks with a lower pH, ranging from 6.0 – 7.5.  Full grown they will only reach about 4 inches, and they are active and interesting to observe.  They can be kept with most tropical fish, but they have been known to cause some problems with the smaller tetras.

There are many other many possibilities, when looking for an interesting bottom dwelling species to add to your home aquarium.  There are many different colors and sizes.  Come in to see us or drop us an e-mail at Marinebio@thatpetplace.com if you need any help or advice in choosing a species.

Patty here. It’s Earth Day, and we wanted to remind you of just a few things you can do as aquarists to minimize your impact on our environment.  Just a couple of things to keep in mind!

More and more, aquacultured corals and fish are available in the market.  When you can, choose aquacultured frags, coral colonies and fish.  By buying these items instead of specimens collected from the wild, we help to reduce the stress on reefs and wild fish populations.  There are hundreds of species, both freshwater and marine that are bred and grown  for use in aquariums.  These fish and inverts are hardy, beautiful and eco-friendly.

When considering equipment and supplies, consider everything from the packaging to the efficiency and impact of those products.  Perhaps you could choose bulk salt in a cardboard box instead of plastic buckets, or upgrading older inefficient lighting to T-5 or LED fixtures. 

And one final consideration: make an effort to learn about the species you want to keep.  We all want our fish and pets to live long and healthy lives, and it is imperative that we know what we’re getting into before we purchase or adopt any animal.  One issue that is most prevalent in the world of aquarium keeping is size.  Many species sold for home aquariums can reach a max size of OVER 12″ in length in a matter of a few short years!  The size of the tank will not govern the size of the fish or its appetite, and our local waterways and coastlines are NOT suitable places to relocate non-native species when they out grow the tank. Nor do they deserve to be housed in tanks too small to roam properly and thrive.

 As responsible aquarists, we can do our part in loving our planet!

Patty here. Koi  are basically colored Carp.  They are descendants of Asian and Central European Carp originally domesticated and used as food in China and Southeast Asia.  Their hardy nature and adaptability made them easy to propagate and transport to new locations.  Beginning over a thousand years ago, Asian breeders were selectively breeding these fish to develop natural color mutations into the brilliant and brightly colored fish that exist today. By the early 19th century through the early 20th century, desirable color patterns were established by the Japanese, and Koi started gaining world -wide popularity. 

As Pond season rolls around this year, many might be considering the addition of Koi to a water feature. Here are a few tidbits to think about before you purchase koi.

• Koi should only be housed in ponds at least 1000 gallons or more. The bigger the better. The depth of the pond should be at least 3 feet to help the fish to avoid overexposure to sun and heat and to allow them to survive harsh winter temps. If your pond does not fit these criteria, goldfish and comets will be a better fit for you.
• The bright colors shown by koi make them beacons for predators. Herons, raccoons, bears, and even cats and dogs amongst others may find koi a fancy meal if they can reach the fish. Proper depths and shade trees can help the fish to stay safe.
• Koi have big appetites. They are omnivores, and will enjoy a varied diet of staple pellets along with frequent treats of fruits and veggies like watermelon, peas, lettuce, and corn. Koi will also eat plants at the surface of the water and will happily dig at the roots of potted plants on the pond too. You may need to cage the plants to preserve them, or at least top the soil with river rocks.
• By encouraging these fish to the surface for feeding, they can become quite tame, often hand feeding. This behavior allows for visual health inspections that may need to be treated.
• Koi should not be fed if the temperature of the pond sees a constant of 50 degrees or lower as they cannot properly digest proteins.
• Along with their big appetites comes a lot of waste. Be sure to provide ample filtration and aeration particularly if you have a number of these fish in a minimally sized pond.
• If provided with a proper environment, koi can live for decades, and have even been reported as living more than 200 years!
• Wild carp can grow to almost 6 feet in length, and ornamental koi are known to reach lengths of about 3 feet in length. Carefully consider this in relation to the pond you plan on housing the fish in as they grow QUICKLY! Juvenile fish can double in size in a year, and though the growth rate can slow after 2 or 3 years, the fish continue to grow for 10 to 15 years. They’ll need plenty of space to grow and live comfortably.
• Koi spawn in the spring. Females grow bloated with eggs and males compete for the opportunity to fertilize the eggs when she releases them. You may see one fish being chased aggressively around the pond by several others. The female is the target of the attention. Supply breeding mats, floating plants, or plants at the bottom of the pond as a place where she can release her eggs. You may be lucky enough to see new additions to your population not long after, though survivability is usually not high unless the fry are collected and nurtured.

Koi can be the pride of a backyard pond, but they do require a bit more attention and a lot more space than goldfish and comets.  When you’re ready to add fish, give us a call or shoot us an e-mail with any concerns or questions so we can help you to have a successful pond experience.  Be sure to save the date for or annual Pond Festival, too, May 16-17 2009!

Image referenced from Wikipedia and originally posted by Stan Shebs

Hey  Everyone!  Patty here.  Thought I’d take a minute to highlight some of the new and interesting things we’ve gotten in this week in the fish room.  With the Anniversary Sale coming this week, I’m sure there will be more to see and buzz about for the weekend, but here is a look at just a couple of the newest arrivals that are looking particularly pretty.  All of the regular favorites will be here for the sale along with some special goodies that will make the visit even more worthwhile!  We hope you can make it in this weekend!
Freshwater

Lake Tebera Rainbow
Like other Rainbowfish, this species is great for larger community aquariums. They are larger, but active and peaceful. Rainbowfish are also great additions for their shimmering colors.

Small blood parrot
This batch came to us with more natural looking coloration instead of the traditional brightly colored Bloody Parrots.

Lelupi
Lelupi are a staple in the world of African Cichlids, sought after for their interesting habits as well as their bright yellow-orange coloration. These are lovely!

Gold faced datnoid
Datnoids have a mystique about them that is quite a draw. This species has attractive bars and a golden sheen in the head and face. Enthusiasts should check these out!

Saltwater

Yasha haze
The Yasha Haze Goby has been around in the market for a few years now, but every time one arrives it’s beauty still astounds me. This is a great candidate for a reef or nano-reef system.

Orange-spotted Sea Slug
This pretty slug is a real spectacle! A Pacific native, its bright orange dots make it easy to spot.

Swissguard
Despite is rather cryptic, cave-dwelling personality, Swiss Guards and other related basslets like the Swales Swiss Guard (also here) have amazing color and will not disappoint in the right environment. They are most at home in a rocky reef home.

Feel free to contact our livestock department or a fishroom associate if you are looking for anything in particular before you come in or if you are interested in having something live shipped to your door.