9 Things to Know Before Getting a Red-Eared Slider Turtle

Thinking about getting a red-eared slider turtle? These little guys are popular for a reason — they’re cute, curious, and surprisingly long-lived. But before you bring one home, there are a few things you should know to make sure both you and your turtle are happy for the long haul.

Here’s what we’ve learned from experience and what we wish more people knew upfront:

1. They Can Live Longer Than Your Dog (or Even You)
Red-eared sliders can easily live 20 to 30 years in captivity — some even push past 40. That’s a serious commitment. If you're looking for a short-term pet, this isn’t it. But if you're in it for the long run, they can be a calm, fascinating companion.

2. They're Semi-Aquatic — Not Just a “Tank Turtle”
These turtles need both water to swim in and dry land to bask on. Think of their enclosure like a mini pond with a sunning rock. They need access to UVB light or natural sunlight to stay healthy — it helps them produce vitamin D3, which keeps their shell and bones strong.

3. Temperature Matters — Even for Their Gender
Here’s a wild fact: the temperature during egg incubation determines a red-eared slider’s sex. Cooler temps (around 22–27°C) = male. Warmer temps (31–34°C) = female. And as cold-blooded animals, they rely on external heat to function. Keep their water around 24–28°C and give them a basking spot around 30–32°C.

4. They’re Friendly… Until You Push Them
Red-eared sliders can recognize their owners, especially at feeding time. Ours would swim right up to the tank wall when we walked in the room. But don’t let their charm fool you — they can bite if they feel threatened or are handled roughly. They don’t have teeth, but their beaks are sharp.

5. They Carry Salmonella — Wash Up
Like many reptiles, sliders can carry Salmonella without showing symptoms. Always wash your hands after handling them or touching the water in their tank. This is especially important if you’ve got kids at home. In the U.S., turtles under 4 inches are banned from sale to prevent the spread of this bacteria.

6. They’re Messy Eaters
Red-eared sliders are omnivores when young and lean more herbivorous as they age. They’ll eat pellets, leafy greens, insects, and small fish. But they’re also super messy — they’ll tear food apart and leave bits floating in the water. A good filter is not optional.

7. Minimal Daily Care, But Long-Term Maintenance
They don’t need daily walks or cuddles, but sliders do need clean water, a proper heat/light setup, and regular observation. You’ll need to clean their tank weekly and replace part of the water more often. It’s not hard, but it’s not hands-off either.

8. They Can Get Sick — And You’ll Notice
Shell softening, swelling, open-mouth breathing, or cloudy eyes are all red flags. Most issues come down to poor water quality or lack of UVB lighting. If you stay on top of those, you’ll avoid most common illnesses. No vaccines needed, just prevention and the occasional vet check.

9. They’re Invasive — Be a Responsible Owner
Red-eared sliders are one of the most traded turtles in the world — and also one of the most released. Please don’t let yours go in a local pond or river. They’re invasive in many places and can harm native species. If you ever need to rehome one, find a rescue or a responsible new owner.

So, Are Red-Eared Sliders Right for You?
If you’re okay with a pet that’s more look-but-don’t-touch, needs a proper tank setup, and could be with you for decades — then yes, they can be a rewarding companion. Just remember: they’re not a “starter pet.” But if you're willing to put in the care, they’ll be a low-key and fascinating part of your home.

Let us know if you decide to bring one home — we'd love to hear how it goes!