We are proud to have opened our doors in June 2017 in Frederick, boasting exclusive saltwater livestock and supplies, specialized expertise virtually unheard of in the area, and the backing of other authorities in the aquarium-keeping industry.        

Paul Mangus, the owner of Fintastic Aquariums of Frederick, became involved in saltwater aquariums as a hobbyist, over 20 years ago. He understands the passion of hobbyists and the need to serve the Frederick area. “Even after 20 years of experience, I still get excited when I see aquariums while traveling,” he says. “I know how intimidating it can be for new hobbyists just getting into aquarium keeping, so I try to make it as easy as possible for them. Through my experience I have seen just about every kind of setup there is and can help trouble-shoot some of the most challenging issues that may come up”. Paul is extremely enthusiastic about the opening of this new store. He says, “I’m ready to showcase what we have to offer and give our customers the most affordable and best quality livestock that they’ll find anywhere. We plan to be the favorite saltwater aquarium store in the DC metro area.”       
Fintastic Aquariums of Frederick joins Fintastic Aquariums of Jensen Beach (Florida) and Fintastic Aquariums of Wake County (North Carolina) in providing exceptional value and specialized knowledge of the industry. While each store has its own look and feel, customers will benefit from the combined experience of the entire Fintastic team. With a marine biologist on staff hand-selecting livestock, customers will receive the healthiest species available. Due to the high volume of all three stores, prices will be much lower than any other shops in the area.


- Fully stocked retail store with thousands of fish, coral, and inverts
-Knowledgeable and friendly staff 
-Custom aquarium consultation
-Expert troubleshooting advice for the novice and expert alike
-Aquarium maintenance services for existing aquarium set-ups
-Serve both commercial and residential customers
- New tank installation and set-up
-Weekly or monthly maintenance available

  1. Managing Director
  2. Managing Director
  3. Managing Director
  4. Managing Director



1713 Rosemont Ave
Suite C
Frederick, Maryland 21702


Asfur Angel $190
Coral Beauty Angel $30
Eiblii Angel $40
Flameback Angel $48
Halfblack Angel $28
Midnight Angel $32
Lg. Queen Angel $120
Rock Beauty Angel $26
Rusty Angel $28
Borbonius Anthias $250-RARE!!!
Dispar Anthias $28
Female Lyre Anthias $24
Black Cap Basslet $44
Diadema Basslet $12
Tobacco Basslet $25
 Algae Blenny $16
Midas Blenny $50
Red Lip Blenny $22
Red Perch Blenny $22
Scooter Blenny $16
Tailspot Blenny $22
Copperband Butterfly $26
Four Eye Butterfly $24
Green Chromis $6
Black Saddle Clown $30
Sm. Clarki Clowns $15
Ocellaris Clowns $15
Picasso Clowns $30
Pink Skunk Clown $18
Sm. Tomato Clowns $15
Blue Damsel $6
Yellow Tail Blue Damsel $6
Neon Dottyback $34
Green File Fish $20
Foxface $36
African Aurora Goby $42
Firefish Goby $12
Gold Head Sleeper Goby $18
Mandarin Goby $20
Purple Firefish Goby $28
Rainfords Goby $20
Tiger Wardi Goby $35
Yellow Head Sleeper Goby $26
Yellow Watchman Goby $14
Royal Gramma $20
Panther Grouper $36
Flame Hawkfish $60
Spotted Hawkfish $20
Lg. Masudas Hogfish $150
Bali Jawfish $28
Pearly Jawfish $20
Lg. Red Volitan Lionfish $80
Dogface Puffer $48
Porcupine Puffer $50
Sm. Blue Hippo Tang $55
Med. Blue Hippo Tang $75
Yellow Belly Blue Hippo Tang $70
Med. Blonde Naso Tang $120
Med. Clown Tang $42
Sm. Desjardini Sailfin Tangs $55
Lg. Exquisite Wrasse $90
Hawaiin Kole Tang $50
Hawaiin Yellow Tang $60
Lg. Powder Blue Tang $90
Sm. Sailfin Tang $30
M/L Scopas Tang $40
Tomini Tang $70
Vlamingi Tang $30
Yellow Tilefish $45
Carpenters Fairy Wrasse $26
Clown Fairy Wrasse $42
Dragon Wrasse $30
Melanarus Wrasse $30
Orange Back Fairy Wrasse $65
Sixline Wrasse $20
Yellow Coris Wrasse $18

Ultra Rock Flower Anemone $40
Carpet Anemone $40
Long Tentacle Anemone $40
Rose Bubbletip Anemones $80
Sebae Anemone $30
Porcelain Crab $10
Feather Dusters $12
Coral Banded Shrimp $12
Fire Shrimp $28
Harlequin Shrimp $30
Peppermint Shrimp $6
Skunk Cleaner Shrimp $25
Fighting Conch $10
Sea Cucumbers $8
Arrow Crab $10
Blue Leg Hermit Crab $1
Emerald Crab $6
Pom Pom Crab $10
Feather Duster $12
Blue Leg Hermits $1
Scarlet Hermits $3.25
Seahare $20
Margarita Snails $1
Mexican Turbo Snails $2.75
Nassarius Snail $2.75
Lg. Star Snails $2.50
Trochus Snail $3
Sand Star $10
Brittle Stars $12
Chocolate Chip Stars $11
Red Serpant Star $80-RARE!!!
XLG. Tree Sponge $30