OUCH! Yes that's a lot of temp swing in a short period of time.
I don't know how you can adjust this but you need to get your temp MUCH more stable than that. I would assume the thermostat on the chiller has a setting that turns it off right at the set temp but everything is already chilling away and the temp slips lower than expected. Maybe setting your chiller to 79 would help? It's probably more of a trial & error type of thing.
I would highly suggest you get a "tank controller" that will control your chiller and heater to work as a team to keep things just right. I use a Neptune Aquacontroller on my tank and LOVE it.
Allen
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Live Rock Rubble will do the SAME thing as Bio-Balls and is NOT a suitable replacement for BIO-BALLS in a Reef System! It's ALL gotta go!! Quote:
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Originally Posted by framerguy ...water changes rule! |
Quote:
Originally Posted by Reddog170  .....Take care and love your reef. |
Nitrate (
NO3) reduction is directly proportional to percentage of Water Change.
Allen's home-made formula...
(-NO3=WC%)
This means if you change 50% of your total water volume (
That's EVERYTHING) you'll get a net reduction of (
NO3) somewhere around 50%.
Ask me about how to increase your REEF budget without going without FOOD!! 
Allen's testimonial . . ."Let Me help you help YOURSELF" (Click Here) Big Al's 10g Julie's (BigAl's Gal) 6g NanoCube Now in STORAGE and Dry-Docked BigAl's Slow 90g Tank Chronicle Allens OFFICE 12g Nano-Reef