That Fish Blog – Aquarium Advice and Information

A few days ago, I came across a curious story in the aquatic news feed regarding fatalities of local swimmers/fishermen in Papua New Guinea. Though the reported fatalities occurred in 2001, the unusual events drew famous monster fish angler Jeremy Wade to Oceania to investigate and nab one of the possible culprits.

There were apparently two fatalities in 2001 during which the two men had their genitalia bitten off as they pursued their aquatic activities. Both bled to death (these were two seperate occasions) after being bitten by a mysterious, human-like predator in a remote area. As it turns out, the culprit was a large Red-bellied Pacu. Read More »

We all know how colorful African Cichlids are, but did you know that there are also other fish in the rift lakes like catfish, crabs, eels? We are going to talk about some cats this time around. I have kept plecos with most of my African Cichlids and most other people do too, but fish like the “Cuckoo Cat” and the Petricola are more adapted to these kinds of tanks. Although they won’t eat algae, they will feast on flakes, pellets or any other frozen food that you may feed your cichlids. Below I’ve listed just a few of the species that are found in the rift lakes, and some may not be found in pet shops.

Lake Tanganyika

Claroteidae – there are at least 62 species in this family, but we will talk about a few that have been bred in the aquarium and may also be found in pet shops. Read More »

A few years ago our plant suppliers introduced new items for sale that were just too fun and interesting to pass up. They were simply called moss balls. If ever there was an aquarium plant with personality, this would be it. They have a certain character, and can almost become like a pet in the aquarium even if they aren’t dazzlingly colored or active like the fish we keep. The vague nomenclature was accurate enough, but the story of where and how these mysterious moss balls come to be is as interesting as they are to look at when you place them in your aquarium.

Marimo, Japanese for “ball seaweed”, were named by a Japanese botanist decades after they were originally described by someone else in Austria around 1820. They originated in shallow areas of a few freshwater lakes in the world including several in Japan, Iceland, Scotland and others. In the trade they are referred to as moss balls or Japanese moss balls, but they also have several other names given by those who encounter them in their native waters. The name seems fitting…each ball has a velvety, thick, fuzzy texture much like a mound of filamented moss. However, moss balls aren’t really moss at all. These unique formations are actually colonies of the filamentous algae Aegagropila. They were previously classified as Cladophora aegagropila, but modern research proved that they actually belong in genus Aegagropila. Don’t let their classification as algae scare you, this is a fun, non-invasive kind! Read More »

Every generation grew up with their alternative pets – ant farms, Sea Monkeys, pet rocks, Tamagochi’s, Furbies – but there are still others out there that are just waiting to lure in the next generation. One of my favorites of these is one that, in my opinion, doesn’t get nearly the attention it deserves; they are MUCH cooler than the brine shrimp known as Sea Monkeys, at the very least! So what are these new little pets you can put under the Christmas tree instead of a pony or a puppy? Try Triops, aka “Sea Monsters”! Read More »

If you’ve ever had to catch a fish out of your aquarium (or watched the employees at your fish stores catch the fish for you to take home), you can probably appreciate how difficult it can be. These are in relatively small glass or acrylic boxes however; catching a fish from its own home turf is exponentially more difficult! Back when the marine aquarium trade was first gaining popularity in the mid-20^th century, collection was usually laid at the feet of local islanders and fishermen, especially in the small Indo-Pacific island communities that may have had little other source of income. They naturally tried to optimize their collection and profits, but unfortunately this often came at the cost of the animals they were retrieving. Techniques like blast fishing (discussed in a May 2010 blog) and the use of cyanide became common. While not as physically destructive as blast fishing and bombs, cyanide collection was just as deadly. It is now illegal and banned in many areas, but enforcement can be spotty in these isolated areas and some of these irresponsible practices still occur. Read More »