Upgrade to New tank

[Rajat]

Need advise

I am planning to Upgrade to a bigger tank next month
My current tank is 70g Dt+sump almost 5yrs old
New tank will be 120g DT+Sump

Upgrade to new tank will be done in a single day with all my 5+ Old Media ( One Marine pure block + 20 odd marine pure spheres + 10 odd marine pure cubes , lots of rock rubbles ) will be transferred to new tank's sump
My old rocks , sand and entire water will be discarded
My bioload is
1 5 yrs old Yellow tang
2 Medium sized clownfish
2 Pajama cardinals
20 odd snails and 2 conches

Do you actually think ill have an ammonia spike if i transfer everything in new tank within 4hrs of its set up

I have been cycling my aquascape in a separate holding container for 10days and will be cycling for another 12 odd days so 3 weeks

Wont my old media in new tank give it an instant cycle ?

Thanks in advance

 

[TX_REEF]

yes, your mature cycled media from the existing tank will immediately establish the bio-filter of your new system.