Nyos Quantum 300 Protein Skimmer fit check
Nyos Quantum 300 Protein Skimmer is an in-sump internal protein skimmer rated up to 1,000 gallons. Box ratings assume light stocking, so ReefCrafter scales them by bioload: about 665 gallons lightly stocked, 500 gallons medium, or 400 gallons for a heavily fed fish tank.
Nyos Quantum 300 Protein Skimmer: fits roughly 200-1000 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.
Who it is for
Good fit for
- ✓ 200+ gallon systems, per the catalog fit range.
- ✓ Heavily fed tanks up to about 400 gallons, or lightly stocked tanks up to about 665 gallons.
Not a fit for
- ✕ Tanks under about 200 gallons; it is sized above them.
- ✕ Heavy-bioload tanks above about 400 gallons; the box rating assumes light stocking.
- ✕ Hang-on-back or AIO setups without a sump chamber deep enough for it.
Listed features
- in-sump
- needle-wheel
- whisper-quiet
- EQ upgrade compatible
Compatibility math
Bioload headroom
Example: On a 75g mixed reef, ReefCrafter wants about 150g of skimmer rating for medium bioload.
Nyos Quantum 300 Protein Skimmer is rated around 1,000g, so the useful question is whether that clears the fish load with margin.
Risk notes
- A skimmer can be fine for a light reef and thin for the same tank once feeding and fish load increase.
Professional fit context
- Compare rated maximum gallons, physical fit, cup clearance, noise, and bioload margin.
- Nyos Quantum 300 Protein Skimmer fits roughly 200-1000 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Royal Exclusiv Bubble King Supermarin 300 Internal Protein Skimmer
Same 1,000 gallon rating; compare format and features instead.
- Royal Exclusiv Bubble King Supermarin 250 Internal Protein Skimmer
800 gallon rating vs 1,000: less headroom, for smaller or lighter-stocked tanks.
- Nyos Quantum 220 Protein Skimmer
500 gallon rating vs 1,000: less headroom, for smaller or lighter-stocked tanks.
Livestock this affects
- Achilles tang
Bioload score 3.8; size the skimmer for heavy feeding.
- Dwarf fuzzy lionfish
Bioload score 3.5; size the skimmer for heavy feeding.
- Powder blue tang
Bioload score 3.4; size the skimmer for heavy feeding.
- Foxface rabbitfish
Bioload score 3.2; size the skimmer for heavy feeding.
Full spec snapshot
- Category
- Skimmers
- Build tier
- Premium
- Estimated price
- $1,299
- Tank fit range
- fits roughly 200-1000 gallon systems
- Format
- In Sump Internal
- Rated skimmer capacity
- 1,000 gal
Related reading
Questions
Is the Nyos Quantum 300 Protein Skimmer big enough for my tank?
It is rated up to 1,000 gallons. ReefCrafter wants 1.5x, 2x, or 2.5x the display volume in skimmer rating by bioload, so it fits about 665 gallons lightly stocked, 500 medium, or 400 heavily fed.
What tank size is the Nyos Quantum 300 Protein Skimmer for?
ReefCrafter's catalog fit range for it is 200+ gallon systems. Confirm that against your final display volume, sump volume, and livestock plan rather than the box label alone.
What should I compare the Nyos Quantum 300 Protein Skimmer against?
Royal Exclusiv Bubble King Supermarin 300 Internal Protein Skimmer (Same 1,000 gallon rating; compare format and features instead); Royal Exclusiv Bubble King Supermarin 250 Internal Protein Skimmer (800 gallon rating vs 1,000: less headroom, for smaller or lighter-stocked tanks); Nyos Quantum 220 Protein Skimmer (500 gallon rating vs 1,000: less headroom, for smaller or lighter-stocked tanks).
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