Hehe New Tanks Need Cleaning Tips

[NinjaofTerror]

Hey I got 2 20 gallons and 3 ten gallons for free from a guy who was getting out of reptiles. These were mouse breeding cages. I was wondering what i could use to clean these out and santize them. However I don't want to make my geckos sick once they move into their new homes. So what would be the best way to clean it? Also two of them have minor cracking in them what can i use to seal the cracks

 

[RamseysReptiles]

Chlorhexadine (AKA Virosan) is what I use to clean all my gecko enclosures. It works wonderfully and is animal safe, most reptile supply sites carry it. they sell it in the concentrated form so just ad a cap full for every 2 liters or just enough to make the water tint blue. As for the cracks, just use silicone once it dries it's perfectly safe.