I dont have a trigon but i have the Rio 240 so im guessing the filter and heater will be the same, the filter i have is very good, supports 1000
LPH, the only moan i have about it is that the heater dosent have anyway to tell what temperature its running at, so you have to get a thermometer to monitor what temp its at. The Heater is just infront of the
powerhead so it pushes out the water that has just been heated (if that maked sense). As i said earlier i dont have the trigon, but seeing as they are both juwel tanks there is a strong possibility it will be the same filter unit.