Question: Changing Rock in established system

[RyanAlan]

I have about 200 gallon system that I am wanting to reaquascape with dead figi rock. I am going to be putting about 150+ lbs into the DT.

Do you guys think I would have a problem with the water chemistry if I am going to use the same water or should I just completely cycle the rock and then rescape?

I am simply going to pull out all the existing aiptasia infested rock and put completely clean rock into the system.

Please advise.

Thanks!

 

[ingtar_shinowa]

What livestock do you have in it?

 

[aleonn]

If you remove all of your existing rock, you lose all of your biological filtration. Is this a newer tank, or an established one with livestock?

 

[RyanAlan]

This tank has been up for about 1 year now.

Here is my livestock that will need to stay in the tank:
1) Red Sea, Desjardini Sailfin - 5 inches
2) Purple Tang - 4+ inches
3) Yellow Tang; Hawaii - 3-4 inches
4) Lavender Tang; Hawaii - 3-4 inches
5) Red Coris Wrasse; Hawaii - 6 inches
6) Mystery Wrasse - 2-3 inches
7) 2 African Cleaner Wrasse
8) 2 - Limbaugh's Chromis
9 ) 4 - Green Chromis
10) 1 - Indigo Chromis
11) 2 - Vanderbilt Chromis
12) 1 - Hawaiian Snowflake Damsel
13) 2 - Orange Anthias
14) 1 - Gold Stripe Maroon Clown - 4 inches
15) 1 - Aiptasia Eating Filefish
16) 1 Female and 1 Male - Orange Peel Pseudochromis
17) Chrysurus Angelfish - 5-6 Inches (Tank BOSS and somehow reef safe thus far)
18) Australian Blue Devil Grouper - 6-7 inches.
19) Longnose Hawkfish - 4+ inches

 

[Denbf58]

that is not a good plan you will have no bio filter with the dry rock. and even if you had fully cured live rock you my get a recycle by moving rock and sand bed

 

[RyanAlan]

I also forgot to mention that I am going to also be changing out my sand completely and will continue to run my Warner Marine N/P pellets.

 

[cakemanPA]

Don't do it like that... You will spike ammonia and nitrites. Too high of a bio-load to take out all your rock and sand... imho