SaltwaterReefCo, aquarium installation, maintenance, IL

  RO/DI Systems: When to Replace Membranes Reverse osmosis/deionization (RO/DI) systems are designed to produce high-purity water by removing dissolved solids and contaminants in stages. The membrane is one of the most important components, but it isn’t replaced on a calendar schedule—most failures are driven by feed water quality, maintenance habits, and the presence of damaging compounds. As a rule, you should monitor performance rather than guess. The most practical way to decide when to replace an RO membrane i ... Read more »

  How to Choose a Protein Skimmer for Your Aquarium A protein skimmer is one of the most effective tools for removing dissolved organic compounds from saltwater aquariums. But “buying the biggest skimmer” is rarely the best approach. The right choice depends on how much waste your system produces and how easily the skimmer can be tuned and maintained. Start with the tank volume and expected bioload Manufacturers usually publish a recommended tank size, but those numbers can be optimistic. A higher bioload—mo ... Read more »

  Mandarinfish care: feeding in captivity Mandarinfish (often sold as Synchiropus splendidus) are prized for their vivid colors, but they are also among the most challenging marine fish to keep. The main reason is feeding: in the wild they graze on tiny, living crustaceans, and many individuals struggle when offered frozen or prepared substitutes. For most keepers, the key to “mandarinfish-proof” feeding is building a tank that can sustain natural prey—especially copepods—before the fish ever arrives. ... Read more »

  Top 10 Reef-Safe Fish for Beginners (Beginner Picks) Starting a reef tank is exciting, but “reef-safe” doesn’t mean every fish behaves the same way. Many species are broadly considered compatible because they typically don’t bother corals, clams, or most invertebrates—yet individual temperament, tank maturity, and feeding habits can still change outcomes. Below is a beginner-friendly top 10 list of reef-safe fish commonly recommended for newcomers. Use it as a starting point, then confirm with your retailer ... Read more »

  Reef-Safe Fish Compatibility Chart (Quick Guide) “Reef-safe” generally means a fish is unlikely to harm corals, clams, or invertebrates— but it’s not a guarantee . Many species are considered reef-safe because they typically ignore coral polyps, yet stress, hunger, or territorial behavior can still lead to nibbling or aggression. This reef-safe fish compatibility chart groups common hobby species by how reliably they tend to coexist in mixed reef tanks. Treat it as a quick decision tool, then verify wi ... Read more »

  Why You Should Only Use RO/DI Water Using the right water is an unglamorous but critical choice in everything from water filtration systems to reef aquariums. Many users eventually land on RO/DI water —water produced by reverse osmosis (RO) followed by deionization (DI)—because it delivers consistently low levels of dissolved solids and contaminants. While tap water can vary by season, location, and treatment method, RO/DI is designed to remove the sources of variability that lead to residues ... Read more »

  Dosing Pumps & Calcium Reactors Explained for Reef Tanks Dosing pumps and calcium reactors are popular tools for maintaining the balance of key parameters that corals need—especially calcium (Ca), alkalinity (often measured as dKH), and carbonate/bicarbonate levels. When these drift, growth can slow and sensitive species may struggle. While both approaches can support stable reef systems, they differ significantly in how they deliver supplements and how they’re tuned. What dosing pumps do A dosing pump i ... Read more »