new dsb

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Hi, my pipe from my overflow to my sump broke the other day, i lost water but that is all, i took the opp to change the sumps stand, i do have a dsb in my sump, so this is what i did.. I took out 5cm of sand and put in buket 1 another 5cm in buket 2 and again 5cm in buket 3 as to try and keep the bakt in place, changd the stand and threw in the sand in reverse order, my question is, did the bact survive, did i release all that No3 into my water, and please tell me from a professional view point what u think , thank u plenty
 
Well, some bacteria would die - obviously.
But I doubt if all did. Disturbing the DSB to the bottom is not a good thing. But if you can not do it in another way then I believe your method is the only other option.

Just check the ammonia levels this week. Surely a small cycle will be kicked off. But your DSB would recover very quickly.
 
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