About
Salty Underground is a premier online store dedicated to the saltwater aquarium hobbyist. The store carries an impressive inventory of 600+ live marine products including 417 saltwater fish species, 62 coral varieties spanning soft corals, LPS, SPS, mushroom corals, and zoanthids, plus 150 marine invertebrates, sea anemones, sea sponges, marine macro algae, clams, and the specialty Berghia Nudibranch — a natural biological solution for controlling Aiptasia anemone infestations in reef tanks. Salty Underground caters to both beginner and advanced reef keepers, offering aqua-cultured marine fish, a curated beginner marine fish category, and a robust educational article library covering coral care, reef aquarium setup, marine pests, fish diseases, and algae management. Products are regularly discounted 20–30% off, and free shipping applies to all orders over $169, making it one of the most cost-effective places to source live marine livestock online. Whether you are setting up a new reef tank or looking to expand an established system, Salty Underground provides the livestock, knowledge, and value needed for a thriving saltwater aquarium.
Key Features
- Massive Marine Livestock Inventory: Over 600 live products including 417 saltwater fish species, 62 coral varieties, 150+ invertebrates, sea anemones, sponges, clams, and marine macro algae.
- Berghia Nudibranch Specialist: One of the few online retailers specializing in Berghia Nudibranchs, a natural biological solution for eliminating pest Aiptasia anemones from reef tanks.
- Free Shipping on Orders Over $169: All orders meeting the $169 threshold ship for free, making it economical to stock or restock a saltwater aquarium.
- Regular Discounts of 20–30% Off: New arrivals and featured products are frequently offered at significant discounts, including special pricing on rare and specialty livestock.
- Educational Article Library: Comprehensive guides on coral care, reef aquarium setup, marine pests, fish diseases, algae management, and more to help hobbyists at every level succeed.
Use Cases
- Setting up a new saltwater reef aquarium with a diverse starter selection of fish, corals, and invertebrates.
- Naturally eliminating Aiptasia pest anemone infestations by introducing Berghia Nudibranchs into a reef tank.
- Expanding an established reef system with rare fish, SPS coral frags, or specialty invertebrates.
- Sourcing marine macro algae for refugium or display tank setups to improve water quality and aesthetics.
- Purchasing captive-bred, aqua-cultured fish for a more sustainable and disease-resistant reef aquarium.
Pros
- Unmatched Product Variety: Covers virtually every category of saltwater aquarium livestock, from common clownfish to rare wrasses, specialty nudibranchs, and ultra-grade clams.
- Beginner-Friendly: Dedicated beginner marine fish category and rich educational content make the store approachable for newcomers to the saltwater hobby.
- Consistent Discounts and Free Shipping: Regular 20–30% markdowns combined with the free shipping threshold offer strong value compared to local fish stores.
Cons
- Inherent Live Shipping Risk: Shipping live marine animals always carries mortality risk due to transit stress, which is a challenge for any online livestock retailer.
- Specialty Items Frequently Out of Stock: High-demand or rare items such as ultra-grade clams, certain tangs, and large Berghia nudibranch lots often sell out quickly.
Frequently Asked Questions
Yes, Salty Underground provides free shipping on all orders over $169.
The store carries saltwater fish, soft corals, LPS corals, SPS corals, mushroom corals, zoanthids, marine invertebrates, sea anemones, Berghia nudibranchs, sea sponges, marine macro algae, clams, and live foods.
Berghia Nudibranchs are small sea slugs that exclusively feed on Aiptasia anemones, which are invasive pest anemones that can rapidly overtake a reef aquarium. They are a natural, chemical-free control method.
Yes, there is a dedicated aqua-cultured marine fish category offering captive-bred specimens that are generally hardier, more disease-resistant, and more sustainably sourced than wild-caught fish.
Absolutely. The store offers a beginner marine fish category with hardier, easier-to-keep species, along with extensive educational articles to help new hobbyists get started and succeed.