Budget Setup
Desktop Planted Aquarium Setup Under $100
A desktop planted aquarium under $100: compact glass, quiet filtration, clip/bar LED, sand, and easy plants. Core essentials ≈$96 — optimized for noise and footprint, not scape contests.
- Core ~$96
- Desktop
- Quiet gear
- No CO₂
- Beginner
Core essentials ~$96 for a quiet desktop planted tank (US estimates).
Complete shopping list (BOM)
How to read: essential rows sum ≈ $96. See BOM note. Use the stocking calculator before livestock.
| Item | Why we pick it | Est. | Buy |
|---|---|---|---|
| 5–10 gal glass (plain) | Avoid sealed plastic kits. | ~$25 | Buy Now |
| Quiet sponge kit or mini HOB | Noise matters on a desk. | ~$18 | Buy Now |
| Clip/bar LED | 6–7 hour photoperiod. | ~$18 | Buy Now |
| Heater 25–50W (if tropical) | Desk rooms vary. | ~$14 | Buy Now |
| Dechlorinator | Tiny bottle is enough. | ~$4 | Buy Now |
| Sand + plant pack | Anubias/moss friendly. | ~$17 | Buy Now |
Specific product picks
What NOT to buy
- USB toys with no real filter.
- Loud air pumps under the monitor.
- Betta cups marketed as desks tanks.
Common mistakes
- Overlighting a small footprint.
- Placing tank in direct sun from a window.
- Ignoring evaporation on open tops.
Why this shopping list
What fits this setup
- 1 Betta or shrimp — not a community.
- Use stocking calculator conservatively.
Tools & related guides
- Fish / bioload stocking calculator — Check stocking
- Light power calculator — LED upgrades
- CO₂ amount calculator — CO₂ tiers
- Best easy aquarium plants (2026) — Plants
- All aquarium calculators — Tools hub
- Low-tech planted under $150 — Sibling BOM
- Beginner CO₂ under $200 — First CO₂
Week-1 checklist
-
Day 0
Build & start filtration
Rinse substrate. Fill with dechlorinated water. Start filter/heater as listed.
-
Day 0–1
Seed bacteria & short lights
Add bottled bacteria. Run lights 6–7 hours.
-
Day 2–5
Observe — limited livestock
Spot-clean. Do not overfeed. Watch cloudiness.
-
Day 5–7
Test if you can
Check ammonia/nitrite. Small water change if needed.
-
Week 2+
Stock when 0/0
Drip-acclimate. Stock slowly.
Spend-next upgrades
- Test kit — Cycle confidence (~$25–35)
- Better light / CO₂ — Next tier quality (Varies)
- More plants — Beat algae with mass (~$20–40)
FAQ
5G or 10G on a desk?
10G is more stable; 5G is lighter — both work under $100.
Need a lid?
Helpful for jumpers and evaporation.
Office fluorescent light enough?
Usually no — buy a dedicated LED.
Aqua Plants Hub Editorial
