Tennessee Aquarium releases 500 lake sturgeon into the Tennessee River
About 500 juvenile lake sturgeon went into the Tennessee River at Coolidge Park. Here's how the restoration works and whether it's succeeding.
FishLife
24 articles
Kuhli Loach Care in a River Tank
Kuhli loaches can live in a river tank if you give them a calm zone, soft sand, a group of six, 74–79°F water and plenty of places to hide.
Rosy Barbs: A Hardy River Tank Fish That Doesn't Need a Heater
Rosy barb care for unheated river tanks: temperature range, tank size, group size, tank mates, feeding and the fin-nipping problem.
Zebra Danio Care: The Toughest Little River Fish
Zebra danios are cheap, hardy, fast, and love a strong current. Group size, temperature, tankmates, the long-fin and GloFish varieties, and how to keep them from nipping fins or jumping out.
Bristlenose Pleco in a River Tank: The Best Algae Eater for Current
Bristlenose plecos stay around 4 to 5 inches, cling to rocks in the current, and eat algae all day. Tank size, caves and wood, food, males vs. females, and why they beat…
7 Spooky-Looking Freshwater Fish (and One Vampire Shrimp) for a Halloween Tank
Ghosts, eels, glass skeletons and a shrimp called a vampire: eight strange-looking freshwater animals, how big they get, and which ones actually fit a river tank.
Native North American Fish for Aquariums (and the Rules on Collecting)
Some of the most colorful aquarium fish swim in American creeks. Five natives that do well in a river tank, and the rules you need to know before you net one.
Why Is My Fish Digging? Gravel Moving Explained
You wake up and the gravel has been rearranged, plants are floating and there's a pit in the corner. Here's why fish dig, which ones do it, and when it means something's…
Algae Wafers: Who Eats Them and How Much to Feed
Algae wafers are made for the bottom of the tank, but not every bottom-dweller should live on them. Who eats them, how many to drop in, when to feed, and how to…
Underrated Freshwater Fish That Deserve a River Tank
Skip the usual suspects. Six hardy, active freshwater fish that rarely get the spotlight but look great in moving water: rosy and Odessa barbs, glass bloodfins, panda garras, zebra loaches and cherry…
White Cloud Mountain Minnows: The Unheated River Tank Fish
White Clouds are tough, colorful, cheap and happy in cool water without a heater. Tank size, temperature, tankmates, food and breeding for this classic beginner fish.
Best Fish for Strong-Current Tanks
Some fish hate current. These love it. The best fish and invertebrates for river tanks and high-flow setups, what each needs, and how to mix them.