That Fish Blog – Aquarium Advice and Information

This time around I want to talk about something I hold dear to my heart…aggressive cichlids. Most cichlids have a mean streak towards other fish in the tank, but its a whole different story when that aggression is turned on an unsuspecting aquarist.

Most of the species that exhibit this type of behavior tend to be in the South and Central American cichlid group. The African Rift Lake cichlids normally keep the aggression focused on other fish in the tank, though I’ve had some shell-dwellers who would attack my arms and on occasion rip out some arm hair…truly they can be like feisty little bulldogs. Some larger West Africans and cichlids from Madagascar have also shown brazen territoriality towards me in my many years of keeping them. Read More »

Routine water changes are the most basic, most necessary, and most overlooked acts of tank maintenance. Most aquarists know they should do water changes, but not everyone does or even knows how to do it the right way. How much and how often are highly debated topics among aquarists no matter what kind of tanks they keep.

Why should we do water changes?

Removing water from the aquarium and replacing it with new, “clean” water removes waste and organics that are dissolved in the water. It also helps to remove any chemical treatments or medications when the treatment is complete. Dissolved organics contribute to Nitrate and Phosphate build-up that aquarists try so hard to control. These compounds can affect the health of your livestock directly and can promote algae and cyanobacteria growth, making your tank unsightly. Changing the water also helps to replenish minerals and other trace elements. This can be especially important in tanks with corals and crustaceans (crabs and shrimp, both freshwater and saltwater) that use these minerals to form their skeleton or exoskeleton. Corals and other saltwater invertebrates can use up minerals fairly quickly in a closed environment, and replacing old, depleted water with fresh saltwater adds these minerals back into the tank. Read More »

While browsing at aquarium and fish-related websites, books, magazines, other media, it can be easy to take for granted how difficult the beautiful images you see were to capture on film….until you try to take a photo of your own tank. It’s not as easy as taking a snapshot at a family picnic. Aquarium photographs often turn out blurry, overexposed, underexposed, discolored and otherwise unrecognizable, a far cry from what you were trying to capture. So how do you get calendar-worthy snapshots of your tank? Here are a few tips and tricks I’ve come across: Read More »

I am not too fond of many tilapia species, for eating or keeping, but recently I find myself staring at a little guy we got in called Tilapia ruweti. Seems there isn’t a lot of information out there on this fish, which is starting to peak my curiosity. What I did find is that they come from the Congo Watershed, the Okavango Delta and Zimbabwe in West Africa. Read More »

Aquarium fish need three basic things to keep them happy and healthy in a captive environment: clean water, consistent temperature, and proper food. The first two things are generally easy to provide with regular maintenance and reliable equipment, but it seems something as simple as feeding some fish can be rather difficult at times. What to feed, how to feed, and how much or often to feed can vary by species. Even if you know the answers to these questions, there are some species of fish out there that will not eat the food you offer. After years of working directly with this issue, I have come up with a few tricks to get stubborn fish to eat. Read More »