Almost forgot. This is what she has:
This tank was my nephews tank, he had it about 1 year. The substrate was fine fine sand and we pulled that out and put figi pink. Has a little over 100lbs of Fiji. 20 gal fuge full of cheto. PM skimmer, 4 - VHO's, and I cant remember what the return pump is at the moment.
She has a few fish. All are doing ok, She had added a black clown, purple firefish and both have died but the skunk clowns and other fish are fat and happy. She has a small amount of corals and they are doing fine.
I dont know the params