Sump Build

[BRE_REEFER]

Hey everyone so im building a sump and i need some advice on my filtration order not sure what is best but i would love some advice

currently i plan to place my sump filtration in this order total sump volume 65 gallons

1. overflow pipe into a holding chamber 15 gallons-will be adding a sock in the future
2. Fludized bed using k1 about 1 gallon in a 15 gallon chamber
3. my old euro reef 180 with new pump in a 20 gallon chamber
4. return pump along with a 8x8x4 marine pure ceramic bio block 15 gallon chamber (may ad a holding container with holes drilled in it for a refugum)

tank has about 100lbs of live rock and a 2 inch sand bed i may be replacing in during this up fit
please let me know if that is the right order to have my sump in thank you

This is a reef tank with 1 Blue Gagaintia carpet anemone+2 porcelain crabs 2 clowns+ 1 rbt anemone a Indian sea star 1 yellow tank planing on adding a ghost eel after the upfit.

current filtration is 2 canister form eheim

Thanks in advance

 

[NanaReefer]

Chamber 1, Overflow/Sock and Skimmer.
Chamber 2, refugium, marine pure bio blocks.
Chamber 3, reactors,
Chamber 4, return.
Just my opinion.

 

[BRE_REEFER]

Thanks for the reply i will not be using any reactors, my concern is that fluidized beds can cause very high nitrate so i thought it would be better to put it in front of the skimmer in hopes the skimmer will pull out some of the nitrate created from the amino and nitrite conversion to nitrate but im not sure if that would even make a difference.