Can Guppy Live With Neon Tetra?
Yes, guppies and neon tetras coexist in 10 gallons or larger with overlapping temperatures of 72-81°F and matching pH at 7.0.
Why
- Temperature overlap spans 72-81°F, which covers both guppy's range of 72-82°F and neon tetra's range of 70-81°F.
- pH overlap sits at 7.0, which both species accept without stress.
- Guppies are top-level swimmers and neons are mid-level swimmers, so they do not crowd each other's space.
- Both are peaceful schooling species that thrive in groups of 6 or more.
What could go wrong
Guppies breed constantly and will overstock a tank fast, so plan for fry control. Neon tetras ignore the fry but the guppy population explosion is the real issue.
Gear for a shared tank
Sized for the 10 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 20 Power Filter
Rated for up to 10 gallons with enough biological media to handle the waste from both species.
Eheim Jager 100W Thermostat Heater
Holds a steady temperature inside the 72-81°F window both species need.
API Freshwater Master Test Kit
Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.
Related compatibility questions
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