
Freshwater Fish
Glass Bloodfin Tetra.
A near-transparent tetra with a flash of red in the tail — understated and elegant in a planted school. Peaceful and beginner-friendly; group them in a 20-gallon-plus tank where the light catches their bodies.
We keep this species at our Erie store. Come and see it in the tanks, or call (814) 456-9445 and ask what we have in right now.
Sea Cave keeps this species. You will find these in the tanks at 660 East 14th Street in Erie. We never ship live animals.
- Condition
- new
- Fulfillment
- Local pickup — Erie, PA
We never ship fish, coral, or invertebrates — every animal here is one you meet in person. Each one is acclimated and health-checked in-house before it goes out into the display tanks. This is a species we keep, and what is swimming on any given day changes with the deliveries, so please call (814) 456-9445 before you drive in.
Care at a glance
What to know before you take one home.
- Care level
- Beginner
- Temperament
- Peaceful
- Community
- Community safe
- Adult size
- 2.5"
- Min tank size
- 20 gallons
- Diet
- Omnivore
- Scientific name
- Prionobrama filigera
Good tank mates
Peaceful and community-safe, so it fits a calm community of similarly-sized, easygoing fish. Good companions include other small peaceful tetras, rasboras, corydoras, peaceful gouramis, and livebearers like platies or guppies. Keep it in a school of six or more so it feels secure, and avoid fin-nippers, much larger or aggressive fish, and anything small enough for it to swallow or large enough to swallow it.
Good to know
The glass bloodfin tetra has a body so translucent you can see right through it, with the red color concentrated in its tail, where it flashes as the school moves together.
What is in the tanks and each animal's temperament vary — call (814) 456-9445 for pairing advice.
Good tankmates
Plays well with.
Species we’d keep in the same tank, with why each pairing works. What is in the tanks and each animal’s temperament vary — call (814) 456-9445 for advice on pairing.
New to stocking a tank? Read our guide on which fish live together.

Bronze Cory
Peaceful, armored bottom-dwellers explicitly named by Seriously Fish as compatible. Their typical range (68-82°F, pH 6.0-8.0) fully encompasses the Glass Bloodfin's parameters (72-82°F, pH 6.0-7.5), and they occupy the substrate level while Bloodfins cruise mid-to-upper water — zero resource competition.

Rummy-Nose Tetra
Falls squarely within Seriously Fish's recommended category of 'other similarly-sized characins.' Temp range 76-82°F and pH 5.5-7.0 overlap well with the Glass Bloodfin's parameters. Both are peaceful, schooling South American characins of similar size — no predation, fin-nipping, or aggression risk.
- A
Apistogramma
Explicitly named by Seriously Fish. South American dwarf cichlids that prefer 75-82°F and pH 6.0-7.0, overlapping cleanly with the Glass Bloodfin's window. They hold the lower tank regions, leaving mid-to-upper space uncontested, and are generally non-aggressive toward open-water schoolers.
- O
Otocinclus Catfish
Directly cited by Seriously Fish under 'smaller Loricariid catfish.' Their preferred range (72-79°F, pH 6.0-7.5) is a near-perfect parameter match for the Glass Bloodfin. Small, peaceful algae grazers with no fin-nipping tendency and no size-mismatch predation risk.
Visit the store
660 East 14th Street,
Erie, PA.
Mon–Fri 12–6 · Sat 11–4 · Sun closed. Call ahead on livestock — what's on the floor rotates.