Knife Livebearer
Alfaro cultratus
Unusual livebearer with a distinctive keel-like row of scales on the belly. Fast, active, and peaceful. Less commonly available but interesting addition to Central American community tanks.
More than a design — your whole aquarium, handled
Skapelab plans the scape and everything you need to build and run it.
A design for your tankA hand-illustrated layout, sized to your exact tank and skill level.
Stocking picked for youCompatible fish & invertebrates, chosen and quantified for the tank.
Exact shopping listEvery plant, stone and piece of gear — with how much of each to buy.
Step-by-step setupSubstrate, cycling, planting and stocking, in the right order.
Care & remindersA maintenance schedule with reminders when each task comes due.
Water-test logbookLog your parameters and track the tank on your own dashboard.
Care at a glance
livebearerType
3"Adult size
20 galMinimum tank
4+Group size
peacefulTemperament
72-79°FTemperature
6.5-7.5pH
5-12GH
omnivoreDiet
middleSwimming zone
moderateCare level
YesPlant-safe
Build a tank for Knife Livebearer
Design a complete aquascape around Knife Livebearer — Skapelab picks compatible tankmates, plants, hardscape and gear, sized to your tank. Free.
Open the design studio →