Archive for March, 2008

Species Profile: Pelvicachromis taeniatus “Moliwe”

Today we have a new guest blogger on That Fish Blog, Brandon Moyer. Brandon has worked in the fish room here at That Fish Place for the last couple of years, he is a Marine Biology student at Millersville University, and an aquarium hobbyist. Brandon wrote this blog to share his experiences with a recent aquarium that he started.
Welcome Brandon.

Species Profile: Pelvicachromis taeniatus “Moliwe”

General Information

Pelvicachromis taeniatus is a smaller, more colorful cousin of the popular P. pulcher, or Kribensis as they are commonly named. They are found in rivers throughout West Africa where the water is soft and slightly acidic. There are several variants of the species which differ in coloration. Each variant is named for the area they are found in the wild.
The “Moliwe” is named for the village in Cameroon, Africa, where the variant is most commonly collected. The Moliwe females are very striking. They have an orange-gold dorsal fin, bright purple stomach, and a yellow face with a blue edge to the gills and around the eyes. Males, which grow larger than females, have a dark cross-hatch pattern on their sides, blue eyes, and a mix of reds and yellows in their dorsal, anal, and caudal fin. This is a general description of their color, which may change as a result of Age, mood or environmental conditions. As a pair they draw a lot of attention within the tank.
I began setting up the tank with Eco Complete Planted Aquarium Substrate and a few plants including Sagittaria platyphyllia and Cryptocoryne petchii for cover. I also added a small hiding cave usually used for reptiles, but figured that it would be a good breeding area as Pelvicachromis species are cave-brooders. After the tank cycled with the help of some ghost shrimp, I added my pair of Moliwes. They acclimated well but were very shy. After adding a few zebra danios as dither fish, my Moliwes became more active and began to explore their new home. They spend most of their day close to the bottom of the aquarium digging in the substrate looking for food. Regular water changes and filter maintenance will ensure good water quality.
Taeniatus will take a variety of food, but to help ensure vivid colors and good health try to feed them with a mix of frozen and dry foods. I feed my Moliwes Boyd’s Vita Diet, Prime Reef flakes, and several types of frozen foods including spirulina enriched brine shrimp. A variety of food will ensure that they receive a complete, nutritious diet which will reward you with healthy, happy fish. Carotenoid pigments in their food will help bring out the fishes red colors and spirulina and other algae will bring out blue.
One day I noticed that the entrance to my Moliwe’s cave was barricaded with substrate. The female managed to squeeze out the only hole remaining in the entrance, and the male was preoccupied with keeping the danios in the top half of the tank. After a few days I spotted fish fry within the cave. Much like their cousins the kribensis, taeniatus will breed fairly readily. The usually calm parents will become territorial as they guard over their offspring, making close attention to the well-being of the other fish within the aquarium necessary. Days later the fry began to leave the shelter of their cave behind. Led by their mother and father they began to explore the tank looking for food. The fry will eat prepared foods given it is the appropriate size. I crushed flake and pellet food into a fine powder that the fry readily ate once it reached the bottom of the tank. My first spawn did not last: I assume the danios picked them off one by one, so if you are trying to raise the fry, choose dither fish carefully.
Thanks Brandon, those are really great little fish, I hope you have inspired someone to give them a try!
Untill next blog,
Dave
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Aquarium Livestock, Cichlid Aquariums

Introduction to Triggerfish

Welcome back Mellisa, I hope that you enjoy this general article about Triggerfish. These are facinating, beautiful, and fun fish to keep in your marine aquarium.

Triggerfish

Triggers are with out a doubt some of the most aggressive saltwater fish available to hobbiest. They are carnivores and will eat any small tank-mates. Triggers usually aren’t very picky when it comes to food. They should be fed shrimp, scallops, krill as well as meaty pellets. Triggers should be housed in a large tank 100 gal or more. Larger wrasses, groupers, eels, and large angels are acceptable tank-mates. Most triggers are not reef safe and will chomp on corals, eat crustaceans, as well redecorate the tank upsetting corals and live rock. Use extreme care when placing heaters and power head cords inside the tank. Triggers tend to be very curious and may nibble on the cord causing harm to themselves as well as other tank mates. An aquarist must use caution when working in the tank to avoid being bitten.


In the store we sell several different species of triggers. Some are very aggressive and should be kept alone while others are fairly docile and may be kept in a reef tank with caution.

One of my favorite triggers is the Queen trigger (Balistes vetula). What can I say, I love my queens (Queen angels and Queen triggers). Queen triggers are gorgeous but don’t let their attractiveness fool you. They are very aggressive and get very large which may be part of the reason this fish is not seen all that often in the trade.

The Fuscus trigger (Pseudobalistes fusco), Clown trigger (Balistoides conspicillum), and Undulated trigger (Balistoides undulatus) are also very aggressive triggers but are commonly seen in the trade. These triggers are very attractive and will add character to any predatory tank, just make sure other tank-mates are established and will be tough enough to hold their own.

There are a few triggers that are considered “reef safe” with caution since they are mainly planktivorous. While these “reef safe” triggers do not eat coral, they will most likely eat hermit crabs and shrimp, so be prepared for this behavior if you try them in your reef.

Some triggers in this category include Blue Jaw triggers (Xanthichthys auromarginatus), Sargassum triggers (Xanthichthys ringens), Pink Tail triggers (Melichthys vidula) and Niger triggers. These triggers appear to be less aggressive and are commonly seen in the trade.

I hope that you enjoyed Mellisa’s article. Until next blog,
Dave

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Aquarium Livestock, Saltwater Aquariums