just to be warned the mortality rate in small maxima's ( less than 2 - 3" ) is quite high.
i would drip him to match your current tanks parameters. make sure to give him a real good inspection, looking for pyramid snails or anything else out of place.
i QT for a week and continue with inspections, you may not have the lights or equipment to do this.
then depending on the lights in your tank and what he is used to, maybe acclimatize to the light..
HTH