The Mesotherm Model is ideal for studies involving temperate fresh-water invertebrates, such as ypriniforms (fathead minnow, goldfish), perciforms, and esociforms.
This is a more economical model which, however, is capable of cooling each aquarium independently. Nevertheless, the insulating properties of the cover and of the ½” Plexiglas front window are not of the same order as those of the Arctik Model. The lowest temperature obtainable in the Mesotherm Model is about 15°C (room temperature at 20°C). If the ambient temperature can be reduced, lower temperatures can be obtained. The incorporation of a Thermo-Monitron electronic controller in Mesotherm aquaria ensures that water temperature control is extremely precise (± 0.1°C). Probes for salinity, pH, dissolved oxygen, or ORP can also be connected. The same Arctik Model ‘high-end’ six-step filtration system is incorporated in the Mesotherm Model.
As the lid has no integral illumination, the photoperiodic function is not available. Nonetheless, the photoperiods can be reproduced by means of a SunMatch system or an MRA in the aquaria room.