What size tank does a Exclamation Point Rasbora need?

Exclamation Point Rasbora needs a minimum of 5 gallons, with 8 gallons recommended. They are middle swimmers. Keep in groups of 10+.

Is Exclamation Point Rasbora good for beginners?

Exclamation Point Rasbora is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Exclamation Point Rasbora?

Exclamation Point Rasbora is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 5-7, temp 75-82°F).

Exclamation Point Rasbora

Boraras urophthalmoides

Family: Cyprinidae • Origin: Various

Exclamation Point Rasbora (Boraras urophthalmoides) is a peaceful barb reaching 0.8 inches. Keep in groups of 10+. Minimum tank size: 5 gallons.

Min Tank

5 gal

Max Size

0.8"

Temperature

75-82°F

5-7

Lifespan

1 years

School Size

10+

Swim Level

middle

Hardness

5-15 dGH

peacefulintermediateomnivoreschooling

Is Exclamation Point Rasbora Right for Your Tank?

Exclamation Point Rasbora is an excellent choice for beginners — rated "intermediate" difficulty (2/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. At just 5 gallons minimum, they work well in nano tanks and smaller setups.

With a peaceful temperament, Exclamation Point Rasbora makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 10 together, or they may become stressed and display abnormal behavior. Expected lifespan: 1 years with proper care.

Common Mistakes with Exclamation Point Rasbora

✗

Keeping fewer than 10 together

Exclamation Point Rasbora is a schooling species — they need a group of at least 10 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.

✗

Relying on a heater without a thermometer

Exclamation Point Rasbora needs 75–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.

✗

Putting them in a tank under 5 gallons

While 5 gallons is the minimum, nano tanks require more frequent water changes and leave less room for error. A slightly larger tank (8 gal) is much more forgiving.