Choosing Nepenthes for a 55-Gallon Terrarium: Truncata Too Big, Black Knight Ideal

Grower's tank: 4×T5 6500K, 18–24" above tank, 85–88°F, 47–58% RH. Current: D. capensis varieties, seedlings. Wants N. truncata.

Assessment

Setup good but add full cover for humidity control. N. truncata is a lowlander that will outgrow 55 gal (pitchers >2 ft). Roots invade neighbor pots.

Better Pick

Nepenthes 'Black Knight'—thrives in similar tanks, manageable size. N. lowii × campanulata also works.

Alternative for Truncata

Grow outside tank: 4–6h light, 2–3h cool morning sun, mist 2×/day for humidity. But still gets huge.