About JF

Jason Fox built one of the most recognized brand identities in aquacultured coral. JF Signature Corals operates with a focus on selectively-bred and carefully-named LE pieces that command premium pricing in the SPS, LPS, and zoanthid categories. The "JF" prefix has become shorthand for premium provenance.

Notable cultivars

Acropora & SPS

  • JF Fox Flame
  • JF Homewrecker
  • JF Marshmallow
  • JF Twizzler
  • JF Solar Flare
  • JF Altered Ego
  • JF Beach Bum
  • JF Terra Nova
  • JF Nauti Spiral
  • JF Yellow Jacket
  • JF Purple Blade Simplex
  • JF Brads Insane Del Fuego

Zoanthids

  • JF Big Eye Zoa
  • Multiple JF-named zoanthid morphs

Why JF matters

The JF program brought social-media-era coral marketing to the named-cultivar economy. Each JF piece was photographed, named, and released with documented provenance. The brand approach inspired Battle Corals, Top Shelf Aquatics, Reef Raft, and most modern coral brands. JF didn't invent the idea of named cultivars - Tyree did - but JF productized it for the Instagram era.

Fast Aquatics vendor relationships

Many Fast Aquatics founding-cohort vendors carry JF-traced lineage frags. JF stock is among the most counterfeited in the hobby (similar to Walt Disney Tenuis), so verified-lineage vendor badges will be especially valuable for JF cultivars.

jasonfoxcoralz.com

Sources and references

Jason Fox Signature Corals care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.

Aquarium-keeping fundamentals

Whatever specific topic brought you here, four fundamentals govern long-term aquarium success: water quality, parameter stability, biological filtration, and species-appropriate husbandry. Skip any one and the others struggle to compensate.

Water quality: ammonia + nitrite at zero, nitrate under 30 ppm freshwater + 10 ppm reef. Test weekly with API or Salifert kits. Use our water parameter checker to score your readings against your tank type.

Parameter stability: stable wrong parameters beat fluctuating ideal parameters. Most fish tolerate a wide pH range if it's stable. Sudden swings of 0.4+ pH or 5+°F kill fish faster than chronic suboptimal values. Use temperature controllers (Inkbird) + automated dosing for consistency.

Biological filtration: the bacterial colony on your filter media + rock + substrate is the engine. Never replace all media at once. Use our filter turnover calculator to size correctly.

Species-appropriate husbandry: research adult size, territoriality, diet, and tankmate compatibility before purchase. Use our tank stocking calculator + compatibility guides.

Frequently asked questions

How long does an aquarium take to set up? 4-6 weeks for full cycling + first stocking. Use our cycle ETA calculator + how long does cycling take.

What's the best aquarium for beginners? 20-gallon long. Big enough for parameter stability, small enough for budget + space. See beginner picks.

How often should I do water changes? 25-30% weekly. See water change frequency Q&A + water change calculator.

Why does my fish keep dying? 5 leading causes: uncycled tank, wrong species pairings, no quarantine, undersized tank, neglected water-change schedule. See full diagnosis.

Related resources

Saltwater livestock · Freshwater livestock · Coral catalog · Care library · Q&A library (222) · Glossary (127) · Disease database (50) · Calculators (29) · Interactive tools (7) · Husbandry deep-dives · DIY projects · State legality directory