Cycling rocks

[Natrualreeftanks]

Hello I’m new to this forum I’m setting up a 40 gallon reef tank it’s an all in one system that is going to be ran with light filtration I have a question regarding rocks tho I had a previous tank with some rocks that got infested with GHA and so I’ve been researching a lot on how to clean that, I ended up just putting hydrogen peroxide on them and rinsing them a ton. they looked okay but after putting them into the tank I noticed some residue. Just wondering if that’s a big deal and any further precautions I may want to take I plan on cycling for 2 months before adding anything besides CUC. Any help is much appreciated 

[seabass]

I'd suggest getting some rocks from the ocean, like:

 

https://tbsaltwater.com/

https://www.kpaquatics.com/product-category/aquacultured-live-rock/

 

Sterile rock can be a good platform for pests (like algae or dinos).  Some large turbo snails and manual removal is a better way to deal with hair algae.