Aquarist Species:  Melanotaenia cf. goldiei "Aru IV"

Aquarist: groverlee

Species Profile: Melanotaenia cf. goldiei "Aru IV"

Description:   One of several distinct rainbowfish forms gathered from the Aru Islands (Aru I–IV) by collectors, tentatively assigned to goldiei by German hobbyists though its taxonomic placement remains unresolved — some speculation ties it to an old, rarely-used name senckenbergianus. M. goldiei itself is known to be a widespread species complex likely masking several distinct taxa across its huge New Guinea/Aru range, so treat each form as a separate species, and do not attempt to mix the different forms together for breeding.

Category:   Rainbowfish

Global Region:   Oceania

Distribution:   Aru Islands, Maluku, eastern Indonesia

Aquarist Notes

Photo of aquarist's species:

Genetic Line:   FX 3rd or more Generation

Year Acquired:   2025

Date of Acquisition: 19/07/2025
Source: Aquarium Glaser GmBH

Current Stock: 3.0.0

Water Parameters
pH: 7.8–8.2
Temperature: 22°C–24°C
Ammonia: 0
Nitrite: 0
Nitrate: 0.25 ppm
GH: (Not Tested)
KH: (Not Tested)