Sterilizing used aquarium decor w/ peroxide & water?

[Polytech]

Hi all.
New here, got a situation here that I have never had to deal with before...

I am setting up a new tank (nice one by the way, 78 gallon plexi/ acrylic hex) and I got a screaming deal on a bunch of USED plastic/ resin aquarium decorations @ a garage sale ( I would buy new but @ Petsmart we would be looking @ around $150 worth of stuff).

I do not trust this decor as far as disease, bacteria etc. as it is used... I figure hydrogen peroxide is the way to go to insure I do not possibly contaminate my new set up; as you can't boil plastic and as there is a lot of porosity involved here along w/ old dried on algae... I really don't want to risk the bleach/ water solution method due to the porosity in these cast resin pieces....I have searched this site and all over the web and I still cannot find the proportion of peroxide to water in solution to assure effective sterilization & cleaning of these objects to safeguard my new setup from contamination...Does anybody know offhand how much peroxide to water to accomplish this? I will be doing this in a large stainless sink as the items I'm sterilizing & cleaning are pretty good sized...(Huge castle, something that looks like the great wall of China, etc.)

Thanks in advance for any help on this;

J.D.

 

[spoonman]

I clean all of my aquarium decor and plants with bleach and water. I put a cup of bleach in a 5 gallon bucket and let it soak until all the gunk is off. Then rinse thoroughly and soak again in a bucket of water and dechlorinator. I mix the dechlor at 4X the normal amount. Bleach is chlorine and the dechlor will neutralize it. If the bleach gets into the pores so will the dechlor.

 

[fort384]

If you are going the H202 route, I would dump a whole bottle of 3% concentrate into a 5 gal bucket and put your decor in, then just put enough water to cover the decor. Soak for a few hours, and then use a toothbrush to clean up any problem areas. Empty, and then rinse with clean water. Fill back up with water and soak for a few hours. Any remaining H202 would be so diluted that it would not hurt your tank at all. I have actually used 3% H202 in a syringe directly in my tank before to spot treat algae, with no harm to fish...