Deltec MCX300 Internal Protein Skimmer

Deltec MCX300 Internal Protein Skimmer

  • $299.00
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MCX300 Internal Protein Skimmer

An ultra compact sump protein skimmer for smaller sumps with a constant water depth.

The stripped down version of the ever popular MCE300 is designed to fit into a sump which has a specific water depth which the user can create by bonding in a glass partition during the sumps construction phase. Water from the aquarium should flow into this section and then over flow into the rest of the sump.

Suitable for aquariums up to 320 lts - 70 UK gallons - 85 US gallons.


The high manufacturing tolerances and design of the special venturi and pinwheel produce 150 lts of air per hour, giving it the same level of performance that you would expect from all Deltec protein skimmers and outperforming any other protein skimmer in its class.

The four most important things to consider for a high performance protein skimmer are:

  • Air Volume
  • Bubble Size
  • Air Volume 
  • Air Volume


Foam Fractionation (Protein Skimming) is a process where protein wastes are removed from water by differential electrostatic attraction at an air /water interface. The more air and the smaller the bubbles in contact with the water, the higher the surface area for reaction and the higher the efficiency of the protein skimmer.

The patented Deltec pinwheel rips the air into the finest bubbles for maximum effect.

Contact time is important but only if there is insufficient air for immediate reaction.

Comparative testing shows that most manufacturers claim a much higher suitable tank size for their skimmers with half the air volume or less.

Deltec don't compromise on water quality

Choose your next skimmer on true performance and you will find that a Deltec protein skimmer will work out to be the most cost effective of the lot. 

Deltec logoSpecification

Technical Data:
MCX300 Skimmer: Article No. 31114000
Sump protein skimmer.
Draws its own water from the aquarium via the internal needlewheel pump.
150 litres of air/hr are produced at the venturi.

L 130mm W 110mm H 440mm (normal position).
H 595mm (allowing for removal of the cup).
Suitable water depth 280 - 310 mm

Normal Stocking 320 lts (70 UK gallons)
Heavy Stocking 250 lts (55 UK gallons)

Electrical Consumption:
Pump - Maxijet 1000 with Deltec Pinwheel - 9.5W for 230V version