Can you keep Ember Tetra and Knight Goby Fish together?
Algorithmically generated environmental and behavioral compatibility report.
Algorithmic Assessment
High predation hazard. The size ratio between Knight Goby Fish (3.5") and Ember Tetra (0.8") exceeds 4:1, and the larger species has a semi-aggressive temperament. The smaller species will likely be hunted or eaten.
Scientific Parameter Comparison
Cross-reference water chemistry, temperature range envelopes, and physical dimensions of Ember Tetra and Knight Goby Fish.
| Parameter Metric | Ember Tetra | Knight Goby Fish | Calculated Overlap |
|---|---|---|---|
| Temperature Range | 73°F – 84°F | 72°F – 82°F | 73°F – 82°F |
| pH Chemistry | 5.0 – 7.0 | 7.0 – 8.5 | 7.0 – 7.0 |
| Min. Tank Capacity | 10 Gallons | 30 Gallons | 30 Gallons (Minimum) |
| Aquatic Strata Zone | mid | bottom | Separated Layers |
| Adult Size (Max) | 0.8" (2 cm) | 3.5" (9 cm) | Ratio: 1 : 4.4 |
⚠ Physiological Mismatch Report
Our stocking engine calculations indicate that putting these two species in the same tank causes acute physiological strain. Below are the calculated parameters that violate safe cohabitation ranges:
Behavioral & Environmental Compatibility
⚔️ Do Ember Tetra and Knight Goby Fish Fight?
Environmental or structural requirements between these species clash too heavily to allow cohabitation. High predation hazard. The size ratio between Knight Goby Fish (3.5") and Ember Tetra (0.8") exceeds 4:1, and the larger species has a semi-aggressive temperament. The smaller species will likely be hunted or eaten.
🍽️ Swimming Layers & Feeding Competition
To satisfy their dietary requirements, offer a varied feeding schedule. Sinking pellets or wafers are ideal for bottom dwellers, while floating flakes or micro-granules support mid and top dwellers. The Ember Tetra occupies the mid layer, while the Knight Goby Fish occupies the bottom layer. This separation of swimming zones naturally minimizes direct interactions and reduces competition during feeding times.
📏 Size Difference & Predation Threat
A major physical size discrepancy exists between these two species. The Knight Goby Fish grows to 3.5 inches, which is over 4 times larger than the Ember Tetra at only 0.8 inches. There is a high risk of predation, as predatory fish will naturally consume any tank mate that can fit into their mouths.
🛠️ Plan Your Aquarium Setup
Planning a tank for Ember Tetra and Knight Goby Fish? Ensure your hardware and layout support their physical and water parameter needs:
Safe Tankmate Alternatives for Ember Tetra
Since the pairing between Ember Tetra and Knight Goby Fish is flagged as incompatible, here are 3 peaceful community tankmates that share a flawless compatibility profile with Ember Tetra and match similar water parameters:
Chemistry & Habitat Analysis
Frequently Asked Questions
Are Ember Tetra and Knight Goby Fish good tank mates?
High predation hazard. The size ratio between Knight Goby Fish (3.5") and Ember Tetra (0.8") exceeds 4:1, and the larger species has a semi-aggressive temperament. The smaller species will likely be hunted or eaten.
Can you put Ember Tetra and Knight Goby Fish in the same tank together?
Environmental or structural requirements between these species clash too heavily to allow cohabitation. High predation hazard. The size ratio between Knight Goby Fish (3.5") and Ember Tetra (0.8") exceeds 4:1, and the larger species has a semi-aggressive temperament. The smaller species will likely be hunted or eaten.
What water temperature and pH parameters do Ember Tetra and Knight Goby Fish need?
Both species require compatible parameters. Ember Tetra needs a temperature of 73°F to 84°F and a pH of 5.0 to 7.0. Meanwhile, Knight Goby Fish needs a temperature of 72°F to 82°F and a pH of 7.0 to 8.5. Shared overlap range: 73°F–82°F temperature and 7.0–7.0 pH overlap.
What is the minimum combined tank volume required to house Ember Tetra and Knight Goby Fish?
To successfully house both species together, a baseline of 30 gallons is required. However, because the setup includes territorial behavior from Knight Goby Fish (semi-aggressive), we recommend an adjusted minimum tank volume of at least 40 gallons (adding a 10-gallon safety buffer) to establish separate visual boundaries and minimize stress.
Do Ember Tetra and Knight Goby Fish occupy the same swimming layer?
These species occupy different vertical zones. Ember Tetra prefers the mid layer, while Knight Goby Fish commands the bottom zone. This natural spatial stratification creates an effective biological barrier, preventing direct face-to-face boundary friction and reducing territorial encounters.