How do I keep the vivid blue “eye” and ring pattern from fading?

Aim for moderate PAR (80–150) with strong blue spectrum (peaking 420–460 nm). Too much white or very high PAR can wash rings; too little light dulls centers. Maintain modest nutrients (NO3 2–10 ppm, PO4 0.03–0.1 ppm). Stable alkalinity and salinity help polyp extension. Many hobbyists report improved blues with stable potassium and iodine levels; avoid sudden trace dosing swings.

My colony is “melting” or showing tiny white pustules—what’s the fix?

Pustules suggest zoa pox; perform Furan‑2 dips per label for several sessions, with increased but indirect flow. For general melt, remove decaying polyps, improve aeration and flow, and check for pests. Verify nutrients aren’t bottomed out, and reduce light if recently increased. An iodine dip can aid recovery after trimming necrotic mat.

Which pests target Blue Eye Hornets, and how do I eliminate them safely?

Common threats include zoa‑eating nudibranchs (and their egg spirals), sundial snails, and zoanthid spiders. Inspect after lights out with a flashlight. Manually remove adults, scrape eggs, and run a dip series (iodine or commercial coral dips) 2–3 times over a week. Rinse well. Maintain moderate flow to deter detritus that shelters pests.

They spread fast—how do I control growth and avoid conflicts?

Mount on an isolated “island” rock or create an epoxy moat to limit creep. Trim the leading edge periodically. Keep distance from LPS with long sweepers (e.g., euphyllia, galaxea) that can sting and cause retraction. Avoid shading the colony as it expands; even lighting preserves ring symmetry and reduces patchy growth.

TSA Blue Eye Hornet Zoanthids Coral

Zoanthids

Overview

Blue Eye Hornet Zoanthids Coral shows small button polyps with bright blue centers and contrasting skirts. Classified as Zoanthus sp., this soft colonial polyp thrives under moderate light and low to moderate, variable flow. It relies mainly on symbiotic algae for energy, but occasional fine particulate foods can boost growth and maintain color. Place on isolated rock to manage spreading, and keep space from aggressive neighbors.

Quick Facts

Care Moderate

Lighting Low–Moderate

Flow Moderate, indirect

Placement Low–Mid

Temperament Semi-aggressive (2–3 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 400–450 ppm

AlkAlkalinity 8–10 dKH

Magnesium 1250–1350 ppm

Feeding photosynthetic, phytoplankton, microplankton, rotifers, cyclops, copepod nauplii, powdered coral foods, marine snow

Care & Placement

Blue Eye Hornet Zoanthids Coral (Zoanthus sp.) thrive with stable, clean water and moderate light and flow. Aim for 76–80°F, salinity 1.024–1.026, pH 8.1–8.4, alkalinity 8.0–9.5 dKH, calcium 400–450 ppm, magnesium 1250–1350 ppm, nitrate 2–10 ppm, and phosphate 0.02–0.08 ppm. Provide moderate lighting (PAR ~80–150); too much light can cause bleaching or small, tight polyps, while too little slows growth and dulls color. Use moderate, random flow to keep detritus from settling between polyps and to reduce algae film; avoid direct, blasting jets that keep them closed. Feed 1–2x weekly with fine particulate foods or very small meaty blends; target feed lightly to avoid excess nutrients. Acclimate by drip for 30–45 minutes, then light acclimate over 1–2 weeks. Dip new frags to remove pests (nudibranchs, sundial snails), and handle with gloves and eye protection.Place low to mid in the tank, starting lower and moving up if color fades. Mount on an isolated rock “island” to manage spread, and leave 2–3 inches from neighbors; they’re generally peaceful but can overgrow slower corals, while nearby LPS with long stingers can damage them. Monitor with regular testing and visual checks: prolonged closing may signal pests, irritation, or poor flow; recession or “melting” often points to unstable parameters or bacterial issues; bleaching indicates excess light. Keep nutrients non-zero, maintain good export, and gently baste colonies to prevent buildup. Trim or relocate frags as colonies expand.

FAQ

Frequently Asked Questions

About the TSA Blue Eye Hornet Zoanthids Coral

How do I keep the vivid blue “eye” and ring pattern from fading?

Aim for moderate PAR (80–150) with strong blue spectrum (peaking 420–460 nm). Too much white or very high PAR can wash rings; too little light dulls centers. Maintain modest nutrients (NO3 2–10 ppm, PO4 0.03–0.1 ppm). Stable alkalinity and salinity help polyp extension. Many hobbyists report improved blues with stable potassium and iodine levels; avoid sudden trace dosing swings.
My colony is “melting” or showing tiny white pustules—what’s the fix?

Pustules suggest zoa pox; perform Furan‑2 dips per label for several sessions, with increased but indirect flow. For general melt, remove decaying polyps, improve aeration and flow, and check for pests. Verify nutrients aren’t bottomed out, and reduce light if recently increased. An iodine dip can aid recovery after trimming necrotic mat.
Which pests target Blue Eye Hornets, and how do I eliminate them safely?

Common threats include zoa‑eating nudibranchs (and their egg spirals), sundial snails, and zoanthid spiders. Inspect after lights out with a flashlight. Manually remove adults, scrape eggs, and run a dip series (iodine or commercial coral dips) 2–3 times over a week. Rinse well. Maintain moderate flow to deter detritus that shelters pests.
They spread fast—how do I control growth and avoid conflicts?

Mount on an isolated “island” rock or create an epoxy moat to limit creep. Trim the leading edge periodically. Keep distance from LPS with long sweepers (e.g., euphyllia, galaxea) that can sting and cause retraction. Avoid shading the colony as it expands; even lighting preserves ring symmetry and reduces patchy growth.