Wow looking good, is the tank flush with the interior drywall?
You can easily use the Apex for ATO.
With auto water change its possible to accomplish this with 2 methods.
1. Using the apex with the DOS addons, basically you'd set it up to do continuous water changes of about 1g a day, removing water from the drain side of the sump while simultaneously adding the same amount of water to the return side.
2. Genesis water change system, look into that. It does water changes at about a gallon a minute. Can be programmed for single large changes or multiple small changes.
You can easily use the Apex for ATO.
With auto water change its possible to accomplish this with 2 methods.
1. Using the apex with the DOS addons, basically you'd set it up to do continuous water changes of about 1g a day, removing water from the drain side of the sump while simultaneously adding the same amount of water to the return side.
2. Genesis water change system, look into that. It does water changes at about a gallon a minute. Can be programmed for single large changes or multiple small changes.