Fish

Livestock Selection Guide for Local Pickup in Wheeling, IL

How to choose aquarium livestock that suits the tank you already have, judge health at the shop, and get fish, inverts and coral home to Chicagoland safely.

Aug 197 min read

Aquarium scene with fish swimming among rockwork, illustrating a stocking plan for a Chicagoland freshwater tank

Best Freshwater Fish for Chicagoland Aquariums

A working stocking list for local tanks: adult size, temperament and group needs for the best freshwater fish, plus the species we steer people away from.

Dec 8, 20257 min read

Reef aquarium scene with fish swimming above coral-covered rockwork in a custom saltwater display

Hardy Saltwater Fish That Do Well in Custom Tanks

Not every fish sold as beginner-friendly is one. These are the hardy saltwater fish that handle real home swings, with tank sizes and the caveats that matter.

Nov 28, 20257 min read

Freshwater community aquarium scene with small hardy fish among plants, the kind of low-upkeep display we set up

Low-Maintenance Freshwater Fish for Busy Homes

Hardiness beats color if nobody is home to fuss over the tank. These low maintenance freshwater fish tolerate wide temperatures, hard water and the odd missed week.

Nov 28, 20257 min read

Reef aquarium scene of corals, rockwork and open sand, the kind of habitat a cleanup crew works across

Natural Pest Control: Shrimp, Crabs, Snails and Conchs

Aiptasia, bubble algae, hair algae, detritus and film each have a different eater. A pest-by-pest guide to aquarium pest control with invertebrates.

Nov 15, 20257 min read

Cleaner shrimp perched on reef rock in a saltwater aquarium, one of the calmest inverts on a reef stocking list

Peaceful Reef Stocking Lists That Actually Work

Compatibility is decided long before you buy anything. Here are three peaceful reef tank stocking lists by tank size, plus the order to add every fish and invert in.

Nov 15, 20257 min read

Brightly lit reef aquarium scene, the kind of compact display a nano reef stocking plan is planned around

Nano Reef Stocking Ideas for Tanks Under 20 Gallons

Nano reef stocking is arithmetic before it is a wish list. Here is the bioload math for small volumes, plus worked builds at 10, 15 and 20 gallons.

Nov 14, 20257 min read

Reef aquarium scene with fish swimming among corals, the kind of settled display new arrivals are acclimated into

Winter Fish Transport and Acclimation Done Right

Cold weather turns a short drive home into a real risk for livestock. Here is how we bag, insulate and stage the car, then acclimate the fish once you get home.

Nov 11, 20257 min read

Reef aquarium scene with open swimming water above coral-covered rockwork, the layout a tang needs

Blue Tang Care: Tank Size, Diet and Problems

Paracanthurus hepatus grows larger, swims harder and catches ich more readily than most reef fish. Honest blue tang care starts with the adult, not the juvenile.

Sep 1, 20257 min read

A clownfish swimming close to the rockwork of a reef aquarium, one of the calmest starting points for a mixed community

Building a Calm Reef Community of Fish and Inverts

Compatibility is mechanics, not luck. How territory, feeding niche and add-order hold a reef community together, and what to do once aggression has started.

Aug 13, 20257 min read

Chicago's Premier Custom Aquarium Company

From stunning reef systems to commercial-grade installations up to 2,000+ gallons. Marine Concepts Inc designs, builds, and maintains aquariums that transform any space into a living masterpiece.

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