Why does the neon “psycho” rim fade or turn brown on my JF Psycho Rim Favia Coral?

Rim color often washes out from too much white light, abrupt PAR increases, or ultra-low nutrients. Aim for moderate PAR with strong blue/violet (420–460 nm), and keep nutrients detectable (NO3 5–15 ppm, PO4 0.03–0.08). Acclimate light slowly over 2–3 weeks. Stable alkalinity (8–9 dKH) and magnesium near 1300 help pigment retention. Avoid prolonged shading of the rim.

How aggressive are the sweepers at night, and how should I place it?

Favia favus deploys 2–6 inch sweepers after lights out, with reach extending under higher flow and after heavy feeding. Give at least 6 inches of clearance from neighbors, especially softies and LPS with weaker stings. Medium, indirect flow prevents detritus buildup without provoking excessive sweeper extension. Use a rubble “moat” or isolated rock to protect nearby frags.

My colony has slow tissue recession from the base—what should I check first?

Verify stability: recent alkalinity swings, rapid salinity changes, or low magnesium often precede recession. Inspect for vermetid snails and their mucous nets irritating tissue; remove or glue over tubes. Increase gentle flow to reduce detritus. If bacterial “brown jelly” appears, frag healthy margins well away from the lesion, perform iodine dips, and reduce organics with improved skimming and frequent filter sock changes.

Can I keep vibrant color and promote a tidy, dome-like growth form?

Provide moderate, even PAR and rotate the frag/colony 90° every week for uniform light until it domes. Mount on a larger tile or flat rock so tissue can encrust before thickening upward. Maintain slightly nutrient-rich water (not stripped) and target feed fine meaty foods 1–2x weekly at lights-out for polyp inflation and coloration. Keep flow crosswise to avoid shaded valleys.

JF Psycho Rim Favia Coral

Favia

Overview

JF Psycho Rim Favia Coral shows bright contrasting rims around each polygonal eye (corallite). Scientifically Favia favus, it is a hardy stony, encrusting to massive brain coral; provide moderate lighting and moderate, indirect water flow. It is photosynthetic via symbiotic algae but benefits from occasional small meaty feedings after lights out to support growth and color. Give it space for night sweeper tentacles and place where it will not shade or sting neighboring corals.

Quick Facts

Care Moderate

Lighting Low–Moderate

Flow Moderate

Placement Low–Mid

Temperament Semi-aggressive (4–6 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 1280–1350 ppm

Feeding photosynthetic, mysis shrimp, enriched brine shrimp, chopped krill or clam, zooplankton, microplankton, marine snow, coral-specific powders (e.g., Reef-Roids), oyster eggs, rotifers

Care & Placement

JF Psycho Rim Favia Coral (Favia favus) thrives with stable, moderate conditions. Provide moderate light (PAR ~80–150); start low and move up over 1–2 weeks to avoid bleaching. Flow should be moderate and indirect, with a random pattern to keep detritus from settling without lifting tissue. Place low to mid in the tank on a stable rock; allow 3–4 inches of space from neighbors, as this coral extends sweeper tentacles at night and can sting. Feed meaty foods (mysis, brine, LPS pellets) 2–3 times per week after lights dim when feeding tentacles are out; target feed gently. Maintain temperature 76–80°F, salinity 1.025–1.026, pH 8.0–8.4, alkalinity 8.0–9.5 dKH, calcium 400–450 ppm, magnesium 1300–1400 ppm, nitrate 5–15 ppm, phosphate 0.03–0.1 ppm. Test weekly and aim for stability; this species dislikes rapid swings, especially in alkalinity and salinity.Acclimate with a 30–45 minute drip and coral dip to remove pests, then light acclimate by reducing intensity 20–30% and ramping up over 7–14 days. Mount with gel glue or putty so the base is secure and not buried. Signs of stress include faded tissue (too much light), recession from the base (low flow, pests, or unstable parameters), and gaping mouths (irritation). If bleaching occurs, lower light, increase feeding, and maintain stable nutrients. If recession is noted, raise flow slightly, check for vermetids or nudibranchs, and correct alkalinity drift. Keep hands and tools clean to avoid chemical irritation. Compatibility is best with other peaceful LPS placed at a safe distance.

FAQ

Frequently Asked Questions

About the JF Psycho Rim Favia Coral

Why does the neon “psycho” rim fade or turn brown on my JF Psycho Rim Favia Coral?

Rim color often washes out from too much white light, abrupt PAR increases, or ultra-low nutrients. Aim for moderate PAR with strong blue/violet (420–460 nm), and keep nutrients detectable (NO3 5–15 ppm, PO4 0.03–0.08). Acclimate light slowly over 2–3 weeks. Stable alkalinity (8–9 dKH) and magnesium near 1300 help pigment retention. Avoid prolonged shading of the rim.
How aggressive are the sweepers at night, and how should I place it?

Favia favus deploys 2–6 inch sweepers after lights out, with reach extending under higher flow and after heavy feeding. Give at least 6 inches of clearance from neighbors, especially softies and LPS with weaker stings. Medium, indirect flow prevents detritus buildup without provoking excessive sweeper extension. Use a rubble “moat” or isolated rock to protect nearby frags.
My colony has slow tissue recession from the base—what should I check first?

Verify stability: recent alkalinity swings, rapid salinity changes, or low magnesium often precede recession. Inspect for vermetid snails and their mucous nets irritating tissue; remove or glue over tubes. Increase gentle flow to reduce detritus. If bacterial “brown jelly” appears, frag healthy margins well away from the lesion, perform iodine dips, and reduce organics with improved skimming and frequent filter sock changes.
Can I keep vibrant color and promote a tidy, dome-like growth form?

Provide moderate, even PAR and rotate the frag/colony 90° every week for uniform light until it domes. Mount on a larger tile or flat rock so tissue can encrust before thickening upward. Maintain slightly nutrient-rich water (not stripped) and target feed fine meaty foods 1–2x weekly at lights-out for polyp inflation and coloration. Keep flow crosswise to avoid shaded valleys.