# Coral Dipping and Quarantine | Gulf Coast Aquatics > How Gulf Coast Aquatics dips and observes every coral before sale, plus recommended home-dip practice for new arrivals. URL: https://gulfcoastaquatics.locuspilot.com/guide/coral-dipping-and-quarantine/ Last-Modified: 2026-05-17 # Coral Dipping and Quarantine — Our Process How Gulf Coast Aquatics dips and observes every coral before sale, plus recommended home-dip practice for new arrivals. ![Coral frag being dipped in a clear container with tongs](/images/misc/coral-frag-being-dipped-in-clear-container-hands-h.webp) We operate as a professional service team, so we know exactly how fast a thriving reef tank can turn into a disaster zone. Coral pests are the single biggest avoidable cause of tank crashes today. A solid coral dipping quarantine process prevents almost all of this heartbreak. Our technicians have seen Acropora-eating flatworms wipe out an entire SPS collection in weeks. Aiptasia can overrun a display in just a few months. High-end Acropora frags often run anywhere from $100 to $500 in 2026. We execute a strict five-minute intake dip to protect these investments. Losing a curated collection easily costs thousands of dollars. Let’s break down the specific pests threatening US tanks right now. Our guide covers identification, the exact protocols we use at Gulf Coast Aquatics [/corals-reef-livestock/ →](/corals-reef-livestock/) , and the specific steps you must take at home. This knowledge is going to save you a lot of money. Prevention is always cheaper than a cure. If you are about to add your first corals, also work through is your tank ready for coral [/guide/is-your-tank-ready-for-coral/ →](/guide/is-your-tank-ready-for-coral/) before buying. ## The pests we worry about ### Aiptasia anemones These small brown anemones spread fast and aggressively sting nearby corals. Sometimes hobbyists call them pest anemones or glass anemones. We prefer biological control using peppermint shrimp or Berghia nudibranchs. US-bred Berghia are highly effective but currently cost around $20 to $30 each. Chemical injections like Aiptasia-X work well for isolated outbreaks. Our technicians consider dipping coral before introduction the cheapest prevention method available. You should never crush them inside your tank because they reproduce by fragmentation. Dipping is the best defense. ### Flatworms Three problem types routinely show up in home tanks. Convolutriloba flatworms pose a separate threat by feeding on zoanthids and soft corals. We watch out for Acropora-eating flatworms the most. These pale, almost transparent pests feed directly on acropora tissue. By the time you see them, you are usually already losing colonies. Our teams also frequently encounter red planaria flatworms on live rock. These orange-red pests are mostly cosmetic but actively compete with corals for space. Products like Salifert Flatworm eXit work specifically for red planaria. We find that our initial dip removes adult flatworms effectively. Flatworm eggs remain stubbornly attached to the skeleton. You must repeat the dip cycle in 7 to 14 days for any serious infestations. Our staff uses Levamisole or fenbendazole treatments for extreme cases. ### Red bugs (Tegastes acroporum) These tiny copepods specifically target and feed on acropora. They are bright red and easily visible with a flashlight at night. We look for receding tissue and loss of color as primary warning signs. A standard dip on intake removes the vast majority of these pests. In-tank treatment requires Interceptor for established infestations. Our US customers face a major hurdle regarding this medication. The active ingredient is Milbemycin oxime, a dog heartworm medication. You must obtain a prescription from a licensed veterinarian to buy it. We remind everyone that this treatment kills all crustaceans, so use extreme caution. ### Montipora-eating nudibranchs Tiny white nudibranchs specifically target and consume montipora tissue. By the time you spot them, the montipora bases are already showing severe tissue loss. Our standard dip kills the adults, but the egg clusters survive. You must repeat the dipping cycle multiple times. Many reefers now use Potassium Chloride dips for stubborn cases. We often find that removing all affected montipora from the system is the only permanent solution. ### Vermetid snails These tube-building snails capture coral mucus using sticky, web-like nets. They severely damage SPS corals over time. Our standard chemical dips cannot penetrate their hard shells. Physical removal with tweezers is the primary defense. You can also use cyanoacrylate superglue to seal their tubes shut completely. ![Magnified shot of acropora red bugs on coral tissue](/images/misc/magnified-shot-of-acropora-red-bugs-on-coral-tissu.webp) ## Our coral dipping quarantine process Every single coral arriving at Gulf Coast Aquatics goes through a strict routine. This standardized process keeps our holding systems completely clean. We execute the following protocol for every shipment. 1. **Visual inspection:** Technicians examine the frag under a 30x jeweler’s loupe for visible pests like flatworms or vermetids. 2. **Targeted dip:** Most soft corals and LPS get a 5-minute bath in CoralRx. SPS corals suspected of harboring red bugs get a 15-minute treatment in BioAdvanced Complete Insect Killer. 3. **Thorough rinse:** Frags go into a container of clean saltwater to remove all chemical residue. 4. **Observation period:** The corals sit on an isolated quarantine rack for several days. 5. **Final release:** Frags move to the main sales floor only after passing a final health check. We strictly track which corals came from which supplier shipment. If a pest emerges later, pulling that entire batch is an immediate response. This tracking system helps hold suppliers accountable for their water quality. ## Recommended home dip protocol You must dip again at home, even after purchasing from a reputable source. Pests can hide deep in the skeleton. Our experience shows that eggs routinely survive standard retail dips. A single missed pest can establish a massive colony in your display before becoming visible. Here is the exact home approach you should follow. 1. **Float and acclimate:** Leave the bag floating for 10 to 15 minutes to match the temperature. Keep the dip water stable at 77 to 79 degrees Fahrenheit. 2. **Set up a dedicated container:** Mix 1 gallon of tank water with CoralRx. Never perform a dip directly in your sump or display tank. 3. **Submerge the frag:** Leave the coral in the solution for 5 to 10 minutes. Agitate the water gently every minute or two to dislodge stubborn pests. 4. **Rinse in clean water:** Transfer the frag to a second container of clean tank water. 5. **Inspect under good light:** Use tweezers to pull off any visible aiptasia or vermetid snails. 6. **Isolate for observation:** Place the frag in your tank away from existing corals for two days before mounting it permanently. The entire process takes about 15 to 20 minutes per coral. Our customers sometimes find this tedious when bringing home five frags at once. That minor inconvenience saves thousands of dollars over a year of buying. ![Frag observation rack with labelled isolated frags](/images/misc/frag-observation-rack-with-labels-and-isolated-fra.webp) ## Coral dip products comparison Choosing the right chemical makes a massive difference in survival rates. Many older guides reference outdated product names. We compiled this updated 2026 reference table for quick comparison. | Product | Active ingredient | Best for | Notes | | --- | --- | --- | --- | | CoralRx | Plant extracts | Most softies, LPS | Gentle, reef-safe rinsewater | | Revive | Surfactant blend | Softies, light pest loads | Mild, foams during dip | | BioAdvanced | Imidacloprid | SPS, AEFW, red bugs | Highly toxic to humans, turns water milky white | | Lugol’s iodine | Iodine solution | Light pest control | Better for sterilizing small coral wounds | | Potassium Chloride | KCl (99% pure) | AEFW, Montipora nudis | Cheap, non-toxic alternative, water remains clear | CoralRx remains the absolute standard option for home use. BioAdvanced Complete Insect Killer is the heavy hitter for SPS pests. Our team strongly warns against pouring BioAdvanced rinse water outside. It is highly toxic to local plants and beneficial insects. Potassium Chloride offers a fantastic new alternative. We buy a lifetime supply of 99 percent pure water softener salt for roughly $50. ## When to dip and when not to You have to apply some common sense to the dipping process. Chemicals cause extreme stress to marine life. We follow a few hard rules for specific situations. - **Always dip new arrivals.** This applies even when buying from a specialty shop with a known protocol. - **Never dip in your sump.** Pests dislodged during the process can easily establish themselves in the filtration system. - **Skip dipping for personal fragments.** Frags cut from your own tank have the exact same pest exposure as the parent colony. - **Exercise caution with delicate species.** Harsh dips can instantly melt sensitive corals like Xenia or Anthelia. You might spot pests in your existing display tank eventually. If this happens, come in [/contact/ →](/contact/) with clear macro photos. Our staff will walk you through the exact removal options for your setup. Some pests remain completely manageable with biological controls. Other aggressive invaders require breaking down entire sections of the rockwork. We always prefer prevention over a tear-down. Protecting your investment starts with a disciplined coral dipping quarantine process. Set up a dedicated quarantine station this weekend and stick to the protocol for every new purchase. ## Frequently Asked Questions If you dip already, why should I dip again? Pests can hide in coral skeleton or as eggs that dipping doesn't reach. A 5-minute home dip is cheap insurance — a single aiptasia outbreak costs more than a year of dip product. Which dip product is safest? CoralRx is mild and reef-safe for most corals. Bayer Advanced (chemistry: imidacloprid) is harsher but more effective for stubborn pests like red bugs. Use Bayer carefully and rinse thoroughly. Can I dip already-mounted frags? Yes — keep contact time short and rinse with tank water before placing. Dipping mounted frags is fine for prevention; for active pest treatment you may need to remove the coral from the plug temporarily. ![](/images/misc/wide-shot-of-specialty-aquarium-store-interior-wit.webp) ## Got a tank question? Come ask in person. Free water testing, honest stocking advice, and a dedicated coral room. Walk in Monday-Saturday 10-6, Sunday 12-5. Visit the Store [/contact/ →](/contact/) Call (941) 555-0178 [tel:+19415550178 →](tel:+19415550178)