3 days after i got my octo he ate 2 good size chunks of scallop but since then he wont eat any thing i offer him.

try giving him live fiddlers, many octos will take this but not other types of foods, also test the water to see if anything is wrong

How long has it been? He could just be full and resting.

thats what i tried to feed him this evening.ammonia is a little high,im going to do a water change now.he is a little on the white side, but every time i see him he's on a white rock.

its been about 3 days.the color has me a little more worried.

75g,20g refugium,how much of a water change is to much?

the ammonia, might be the cause so i would do some daily water changes for a week maybe two until its back to normal. Juts wondering, what size tank do you have? and how much live rock?

75g tank 20g refugium and about 60 to 70 lbs of live rock.it was a reef tank and never had so much as a spike.how much of a water change would be to much?

it might just be the shock from the octo since they create a lot of waste, and hopefully it will go away once the tank adjusts but i would still suggest to do water changes until it is better.

thank you for your help.i did a 10 gallon water change and i'll keep doing it every day until its under control. thanks again.

no problem, i know how stressful the first few days with a new octo are. good luck.

thanks again.

What was your ammonia at? What kind of octo and how big? His behavior could be related to senescence, though it could also be water quality related. Keep offering a variety of LIVE foods, once he starts eating you can try frozen. Offer the food with a feeding stick or with your hand and make sure your octopus sees it and recognizes it as food. I hope he makes it.

30% water change would be fine...

but only for one, maybe 2 water changes... not two days in a row... but one big and then smaller ones would be fine

Without knowing the level of NH3 in the water, we cannot give a proper recommendation for how much/how many times to change the water.

my nh3 level were between .50 and 1.0 ppm. i did a 15g water change last night and left 2 very small fiddler crabs in the tank.today i checked my nh3 level and they were fine.i also found the remains of the crabs scattered about the opening of his hole.so i think everything is ok,but i have not seen him yet tonight.

be sure and clean remains out asap! most tanks can't deal with octo waste and left over food!!!!!!!

J

already did.thank all of you for your help!it was needed and appreciated.