Help with new tank cycling

dweyant

New member
Need some help. Wife and I setup a new tank after being out of the hobby for about 15 years. Did a lot of research on what has changed.
We have a 24x48x24 tank with a 35 gallon sump.
It is stocked with about 1.5 inches of "live" sand, and a decent bit of dry "live" rock.
We got everything setup, and use a (dead) shrimp) to cycle the tank. Between the cycling, and a vacation it was about 6 weeks beffore we decided to put anything in the tank. LFS analyzed the water and said everything was fine.
We purchase two small (about 1 inch) clown fish, and a blenny. The One of the clown fish disappeared within 24 hours, the other was swimming at the top of the tank. He made it about four days then disappeared (assume both dead).
That was two weeks ago. Really don't want to kill more fish, but not sure what to do.
Here are the tank parameters. I'm using a Neptune Apex for ORP and PH, Hannah For Alkalinity Nitrate and Phosphate.
Alk 8.1
Ammonia 0
Nitrate 0
Nitrite 0
Phosphate .12
PH 8.01
ORP 225
Phosphate was .36 on 7/20. I've been doing water changes and it has dropped down to the current .12
Thoughts?
Thanks!
 

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Fish don't care about much but ammonia, a pH of over 7.5 and super high nitrates.
Got some flow going?
Is your temperature controlled and stable.
How did you acclimate them to the new tank?
 
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