Your slider can't tell you the water has fouled or the basking dock has drifted cool. baskr watches the pattern across your logs, water and basking temperature, feeding and growth, and shows you what needs attention before it becomes a problem.
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Health today
Doing okay
Red-eared Slider
Basking dock cool
Averaged 28°C vs the 32–35°C it needs to bask and dry off. Check the lamp.
Water temp
24–26°C · 75–79°F
Basking dock
32–35°C · 90–95°F
UVB
High (10% T5 HO)
Ideal ranges for Trachemys scripta elegans, the same targets baskr scores your logs against.
Basking and warm figures are surface temperatures at the spot; cool and ambient are air. Measure with a probe or infrared thermometer at the animal's height.
Life stage matters: Hatchlings and juveniles do best with slightly warmer water (around 26–27°C) and pristine filtration; adults suit the cooler end of the range.
Diurnal
Active by day
Rivers & ponds of the southern USA
Wild climate. Warm, slow fresh water of the Mississippi basin; a fully aquatic life broken by daily basking to dry off.
Why the care is what it is. This is why baskr targets 24 to 26°C water, a hot 32 to 35°C dry basking dock, strong UVB and clean, well-filtered water, not a small tank.
Logging is the input. The product is spotting when a single off reading becomes a pattern worth acting on.
24–26°C (75–79°F) for adults
Too cold slows digestion and immunity; too warm cuts oxygen and stresses the turtle.
A dry dock at 32–35°C (90–95°F) under UVB
A cool or wet dock stops proper basking, which leads to shell disease over time.
Clean, well-filtered water with regular changes
Cloudy, smelly water is a fast route to shell and eye infections; upsize the filter and change more.
A quality pellet base, greens, and some protein; more plants with age
An all-protein diet and over-feeding cause shell deformities and obesity.
Even, smooth shell growth
Soft, pyramided or discoloured shell points to UVB, calcium or water-quality problems.
Clear eyes, clean skin, no white patches
Swollen eyes or fuzzy patches signal poor water quality or infection, act early.
Safe to include
Avoid
Sliders treat most plants as salad or decor to trash, so choose tough, edible species and expect to replace them.
Staples
Occasional / treats
Never feed
Supplements. Calcium (a cuttlebone floated in the tank) alongside strong UVB; a multivitamin occasionally.
Good to know. Omnivores that get more herbivorous with age. Feed measured portions, protein-heavier for youngsters, plant-heavier for adults, and don't overfeed.
The right kind of kit, pick brands you trust.
UVB lighting
A strong 10% T5 HO tube (Ferguson zone 3–4) over the dry dock, replaced every 12 months.
Basking heat
A basking lamp over the dock to reach 32–35°C, on a thermostat.
Aquarium heater + guard
To hold the water at 24–26°C, with a guard so the turtle can't burn on it.
Powerful filter
Over-filter for the tank size; sliders are messy, and clean water prevents most health issues.
Large tank or pond
The single biggest cost: a 4 ft-plus tank or an outdoor pond, not the tiny kit tanks they're sold in.
Basking dock
A secure, dry haul-out platform directly under the heat and UVB.
Grounded in your own logs and the ideal ranges above, plain language, never a diagnosis.
Basking dock has averaged 28°C this week, below the 32–35°C a slider needs to dry off and bask. Check the lamp and dock height.
Water has trended cloudy between changes. Upsize the filter and increase water changes, poor water quality drives shell and eye infections.
Diet has been mostly protein this week. Shift an adult toward more greens and aquatic plants to protect the shell.
Females often reach 25–30 cm, so an adult needs a large tank (roughly 75–125+ US gallons) or an outdoor pond, not the small kit tanks hatchlings are sold in. Plan for the adult from the start.
Yes, strong UVB over a dry basking dock. It's essential for vitamin D3, calcium use and drying the shell; without it, sliders develop shell disease and metabolic bone disease.
They're omnivores: a quality pellet base plus greens and some protein. Youngsters eat more protein, adults more plants. Feed measured amounts, overfeeding causes obesity and shell deformities.
No, never. They're invasive outside their native range and released pets damage local ecosystems. Rehome through a rescue or keeper instead.
Log your red-eared slider's care in seconds and baskr does the watching. Free for your first 3 animals.
Start freeLast reviewed August 2026. General husbandry guidance, not veterinary advice, and ranges vary with age, morph, subspecies and setup. Confirm anything critical with an experienced keeper or an exotics vet.