That Fish Blog – Aquarium Advice and Information

GloFish are some of the most popular, colorful and controversial fish to enter the aquarium trade in a long time. Their easy care, small size, peaceful nature and neon bright colors make them appealing to aquarists of all ages, but the modifications that cause these bright colors cause some debate among aquarists, scientists and environmentalists alike.

The original “GloFish” were not created for the aquarium trade. They came from a popular fish used in many different fields of research, the Zebra Danio (Danio rerio). Zebra Danios have been used in research for environmental studies, cancer research, genetics, reproductive biology, neuroscience and applications to other fields as well. They even made the trip to space in 1975 on the Russian “Salyut 5” space station. So what makes them such good research subject? Zebra Danios are easy to breed and it only takes hours for the internal organs to develop after the eggs have been fertilized (about 24-36 hours, depending on temperatures and conditions). During this time, it is easy for researchers to monitor the development of the embryo since the “shell” around the eggs is a clear membrane. The eggs can hatch about 12-36 hours after that (again, depending on the conditions). These variable time frames also mean that, while the development is being studied, conditions can be adjusted to slow down or speed up the development, depending on what exactly the researchers are trying to determine. The genetic sequence involving the structure of the Zebra Danio’s DNA and RNA is very well-known at this point and is comparable enough to our own that, by understanding how changes in this structure affect the fish, researchers are gaining more understanding into how changes in our genetic structure can affect our own health.

Originally, GloFish were being developed for two major fields: cancer research and pollution detection. In the late 1990’s/early 2000’s, researchers thought to develop a fish that would change colors when a certain pollutant was found in their water. The thought was to develop a fish that would appear normal in “ideal” conditions but when a specific chemical or type of chemical was present in the water, a “trigger” would be set off to cause the fish to “glow” with a fluorescent protein in their bodies. As a step in this direction, they began to develop a fish that would always have this flourescent “glow” in a reproducible and hereditary way that wouldn’t affect the ecosystem around them. To do this, scientists turned to a fluorescent protein naturally found in jellyfish, corals and anemones rather than potentially harmful chemical dyes. Around the same time, similar projects were using a fluorescent protein to “mark” specific genes that were thought to be a cause or sign of cancer. By pairing the fluorescent protein with the cancer-related gene, researchers could see the fluorescence increase or decrease along with the other gene and see if an increase or decrease in that gene was related to the cancer. Since the genes (and cancers) in these fish behave in much the same was as they do within ourselves, researchers are using this to develop a way to track, diagnose and treat cancer in people. Read More »

Fishes are the most numerous and diverse of all vertebrates, so it’s no surprise that many fascinating new species were discovered in 2012.  Among them were 9 brilliantly-colored American Darters and a Vietnamese fish that carries its sexual organs on its head (dubbed, for the lack of a better name, the Genitalia-Headed Fish).  Shallow Tennessee streams, ocean trenches nearly 2 miles deep, Indonesian coral reefs and many other habitats yielded wonderful surprises, and hinted that fish enthusiasts have much more to look forward to. Today I’ll highlight a few grabbed my attention; please post your own favorites (whether covered here or not) below.

US Darters: the Obama Fish and other “Politicos”

Nine new species of freshwater Darter were described from the southeastern USA this past year (Bulletin of the Alabama Museum of Natural History).  Five were named in honor of the environmental awareness exhibited by current and former politicians: Etheostoma obama, E. teddyroosevelt, E. gore, E. jimmycarter and E. Clinton. Read More »

A few weeks ago, a co-worker presented me with a photo, and asked me if I knew what the thing represented in the pic was. I’ve seen a lot of things in my 15 years with That Fish Place (many of which spent in the fish room), but I had never seen the object I was looking at in the pic. My first guess was a bizarre form of algae, as ponds can be home to some strange sludge. Then I contemplated that the mass might be an egg mass of some type, the gel of which possibly being coated or having incorporated algae and muck into it as it floated along. But something still wasn’t right about it. I turned to Google, and with a few quick clicks I found similar photos helping me to identify the blob with relative certainty. It was a freshwater species of Bryozoan! I was familiar with marine forms of bryozoans, but this was quite a different and interesting specimen from others I’d seen, and certainly worth a little more research. Read More »

I can’t believe it is mid-September already, and we are just a few weeks away from our Fall TFP/NCPARS frag swap. The Swap is on Saturday October 6th, during our weekend long Customer Appreciation Sale here at TFP.  The Fall Frag Swap, one of the biannual swaps we host with NCPARS, is shaping up to be a great event.  Our joint swaps have been growing and growing with each coming event, and have become one of the largest swap events on the east coast.  Our Winter Frag Swap this past January had over 400 attendees.  With the additional crowd that comes for our Customer Appreciation Sale event, this swap should be a very busy.

The Customer Appreciation Sale weekend includes all the deals we offer in October throughout the store, Plus some great deals that are for the Frag Swap and Sale weekend.  Weekend deals include 25% off all TFP livestock, Buy three get one free select salt bucket deals.  There will also be some sweet coupon deals on our October sale flyer for the sale weekend.  If you are not already on our retail flyer mailing list, you can still sign up for our email notifications from our TFP home page (just make sure you select notifications for our retail store in your preferences)

For the frag swappers, there will be eye candy galore, from some of the best coral hobbyist on the east coast, including NCPARS own Dan Rigle who was recently featured in Coral Magazine.  Jason Fox, will be on hand, showing off some of his rare beauties.  TFP will have a nice stock of our own frags on hand, including a nice selection of ORA and ACI aquaculture coral.  For more information visit NCPARS Website to register for the event, or visit Fragswapper to see or list items for trade or sale.

Our Vendors have donated some nice items for the NCPARS raffle, including a 60 gallon reef ready cube tank, stand and Reef Capable LED light from Marineland and many other great items.

Aquatic Manufacturer Representatives will be on hand from; United Pet Group (Tetra, Marineland, Instant Ocean, Perfecto…….), Two Little Fishies, Seachem, Aquarium Pharmaceuticals, Reed Mariculture, Hagen, Ruby Reef

Pet Product Manufacturer Representatives will be on hand from; Merrick, Nature’s Variety, Blue Buffalo, Nutro, Nutrisource, Answers, Earthborn, Dogswell, Zukes, Marchioro, Pawganics, Multipet, A&E Cages.

There will be a little something for everyone, so bring the family, and join the fun.

Hope to see you here!

Dave

Whether you consider yourself a fish person or not, it may be easy to be enticed into the aquarium hobby when you see the array of beautiful fish and aquariums available for today’s enthusiast. But setting up an aquarium isn’t something to make an impulsive decision about, especially if you’re not experienced. There are several aspects to consider if you want to do it and be successful. 

So what do you think about first, the tank or the fish? These are obviously both important considerations.

Before you even think about the kind of fish you’d like, it may be best to consider what you have the space and time for. If you rent, first find out if you are permitted to keep a larger aquarium or an aquarium of any size for that matter in your space. If you’re living in a tiny apartment, you may not want to allocate a big chunk of your living area to a bulky aquarium and all of the equipment that comes along with the set-up. If you determine that you have the perfect space for a tank to occupy you can look into the shape and size you might want to keep.

Time is another consideration. Successful aquariums require time for regular maintenance and care, and they are meant to be looked at and enjoyed, so you may not get as much out of the investment if you travel a lot or are constantly on the go. While fish can be lower maintenance than other pets, they will still need to be fed and the water quality will need to be monitored with routine water changes performed when necessary.

Your budget should also play a big role in the decision. How much do you want to spend and how much can you afford to spend? An aquarium and all the equipment to go along with it can be a big financial investment. Once you’re set up is up and running you also have to consider the cost of the inhabitants, food and other supplies that will be needed over time such as new light bulbs for the hood, new filter media and cartridges, water treatments/supplements that you may need for the livestock you keep. It’s a good idea to calculate these costs ahead of time so you have an idea what you might spend, say for the first year, just on the basics.

Once you’ve considered all of these things and you’re ready to purchase your tank, it’s time to research what fish or inverts you want to put into it, their behaviors, and their requirements in a tank. Visit local fish stores or browse online suppliers to see what’s available and what they require as far as space and care. You may be drawn to saltwater fish or African Cichlids, but is your tank big enough to support the fish you like once they reach mature size? Will territorial fish have the space they need? You may want a colorful reef, but can you afford the lighting, salt, live rock and other supplies necessary to support the corals you adore? Before you make the final decision on your investment be sure you’re prepared to provide an ideal environment for the fish you love.

The type of fish you choose may be influenced by your personality. Casual keepers may choose goldfish or assorted tropicals like tetras, barbs and rainbows to form an active, colorful community. More dedicated individuals may choose to keep uncommon species or those known for unique behaviors to observe and breed or a complex reef teeming with fish and invertebrates. Once you dive into the aquarium hobby there are so many paths to take! Talk to other hobbyists so you know what you’ll need and what you can expect, you may find eventually find yourself with multiple aquariums, like may hobbyists do.

If you’re ready to start, but you’re not ready for a big leap, consider a betta in a bowl or another small set up to start with. A small tank can give you a little experience and help you to develop the habits you’ll need when you’re ready to go bigger.  

 
Sargassum Triggerfish image referenced from wikipedia and originally posted by Cliff