lol, alright, lets start over again then.

I have a 55g with about 30g sump. My lights run for 8 hours. I have an odyssea 500gph return pump, that it runs through a UV light, then the chiller, then returns to the tank at about 4 1/2ft high. The chiller is sitting next to the stand in the open, on tile. I guess with what I gather, I might need to get a smaller pump to just run the chiller, and have the return pump just go to the tank. It didnt give me a max flow rate, i tried reading on it but theres a pretty thick manual to go through lol. I read most of it but it doesnt say max flow. it says "1bar" which is what? Hopefully thats enough info... I got it from gat2c in round rock. I did try moving the temp above and it does shut off. It does show a different temp than my "sticker thermometer" on the tank, and the glass one inside the tank reads semi close to the chiller, within 1-2degrees.