reefcalcs

Care sheets

Reef coral and fish care sheets

20 species with real tank-size minimums, exact parameter ranges, what kills them, and the most common mistakes. No pet-store marketing copy.

Fish

Fish stocking starts with knowing the real minimum tank size — not the pet-store one. Sizes here lean conservative.

LPS corals

Large polyp stony corals. Mid-PAR, mid-flow, and dosing-sensitive. Most beginner-friendly stonies.

SPS corals

Small polyp stony corals. High PAR, high flow, and the most chemistry-sensitive group in the hobby.

Soft corals

Soft corals — toadstools, mushrooms, zoanthids. Hardiest coral group, lowest light/flow requirements.

Invertebrates

Cleanup crew and miscellaneous invertebrates. Reef-safe support cast.

Last reviewed