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Ya hit me up when you need a chiller. I keep them on deck 

DavidinGA;987426 wrote: I keep the house at 75-76f and run my tank temp at 80. If I lower my tank temp to say 78f and then run my mh for 6hrs I have a leeway of 7f it would have to climb before I would need anything.
Plus, I mounted the mh 16" above the water line (plenty of our with those lumen bright minis). I could raise that a few more inches if necessary too.
Worst case I could switch back to led for the peak summer months, then back to mh when it cooled down again.
Ya true, shouldn't be hard at all to find a chiller cheap...tonymission;987427 wrote: You could do all that stuff (sounds like a lot of work) OR just run a chiller and keep your tank at an exact temp all the time. Haha!! For happy SPS of course.
Now I'm just busting your chops, but you'll want to avoid huge temp swings if you're going to keep acros. They love stability.
All those $700-900 JBJ chillers are selling for $250-400 used non stop. Horrible resale market as more folks go LED. Their loss, my gain.
DavidinGA;987429 wrote: Ya true, shouldn't be hard at all to find a chiller cheap...
tonymission;987431 wrote: Not sure how big your tank is but Sterling has a monster 1/3hp JBJ for $350 in his getting out thread. I'm running a 1/5hp on my 90g and it barely runs. Have a 1/4hp on my 80g frag tank and it also barely runs ... got the bigger one only because I got a steal on it used. You really don't need much if you get an efficient chiller. Had a 1/2 hp aquamedic old school chiller on the frag tank and it ran non stop; noisy and hot as hell... I like the JBJs (obviously) because they look as slick as a chiller can look beside the stand and seem to operate very efficiently. Very quiet.
I keep my house as cool as yours and also changed out my windows hoping to avoid a chiller... wasn't enough. Just something I'm resigned to dealing with as a MH/acro dude.
DavidinGA;987432 wrote: I'm at about 240-250 total water volume (210g dt).
Are you running mh? How many hours do they run? Are you using fans across the water and still need a chiller?
I'm starting out at 3 hours a day. Think that's good/safe?glxtrix;987468 wrote: Just make sure you properly acclimate your corals to the MH's...esp in the LB reflectors. They pack a punch and can bleach corals if not properly done. I loved my 3xLB minis over my 140. Ran 175W bulbs and never saw the need to do more. Since downgrading to the 60cube I'm running a Kessil 360 and enjoy it. Getting good growth (I'm judging it on my red dragon frag) and color seems nice too. I do plan to add another eventually....but def not in a rush. Good luck with your setup! Chillers are def nice to have, I always had one on as a precautionary....while your water volume is big and my be helping to keep things cool, dont underestimate it....trying to cool that much water in the event of an emergency is never fun!