- Joined
- Dec 10, 2019
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- 131
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Brand new tank, only a few weeks old. I just put LS into it a couple of weeks ago, and I've been watching the levels ever since. Everything seems fine so far. I just did my first water change last night (20%). Some folks had advised me to put some BIO-Spira in the tank, because I hadn't fully cycled it before putting the fish in, which I went ahead and did. This is a 75g DT with a 25g sump, and the BIO-Spira I ordered is an 8.5 oz bottle. However, due to an ordering glitch, I received two bottles of BIO-Spira when I ordered. I only used one before, but is there anything to be gained/lost by adding the second one as well? Or should I just throw it away instead? I've read that it's "impossible to overdose" this stuff (because supposedly any bacteria beyond what is actually needed will just die off), which is what makes me think I might as well add it. But on the other hand, I don't know how true that "impossible to overdose" advice is.