Gallon Or Litre?

[PrairieSunflower]

I've gotten muddled up... is it 1 gallon per inch of fish or 1 litre per inch of fish? Trying to decide whether or not to get more neons for my 3 foot tank and have forgotten the measurement to calculate!

 

[fluttermoth]

One inch per gallon, or 1cm per two litres.

And be prepared for all the epople who are going to tell you that guideline is useless! Personally, I think it's very useful, especially when you're talking about small shoalers, like neons

 

[PrairieSunflower]

Thanks, I went all brain dead there for a bit!

I'm not looking to fully stock my tank, just want to know where I stand. I want to always leave room for new comers (since I have 4 female guppies in there and fry will come and go frequently).

Awesome. I just googled fish per gallon calculator and came up with this. http/www.howmanyfish.com/ Great for those of us who are mathematically disabled....