2 Replies to “How to Add Substrate to an Existing Aquarium”

  1. Thnaks so much for this! TvT My tank is only gravel and I want to add a substrate in but I don’t want to take the fish out but I read that it’s quite messy and … *sigh* well it just sounded like such a hassle. But this methods seems so easy. I’m going to try this, and hopefully the fish don’t get to stressed. ^^
    thanks again!

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