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Recently we purchased a 90g tall in order to return to the hobby from a considerable break. However now I am completely confused with what the recommending stocking would be for this tank. Currently we have 14 neon tetras, 6 cory cats, 2 swordtails, 4 hatchet fish and 11 guppies. Now I am wondering if I can safely add more fish? And if I can add more fish any possible suggestions on what else would live happily in this tank? And is there a dummies version formula for stocking?

Thanks for the help!

What are the dimensions? I've never heard of a 90g tall tank. My standard 90 is already higher than any other tank I'd want. Any stocking formula is tentative and would have to be altered to fit your exact tank dimensions and type of fish anyway. Better off just asking someone who's stocked similar sized tanks than trying to apply strict rules to something with so many variables.

You should increase the hatchets and possibly the cories. These are schooling fish and like to have at least 6 of their own kind. Larger groups would be much appreciated and would likely lead to healthier, more colorful, and more active fish. The only other problem I see is if the guppies are of both genders your going to have issues in the near future unless you already have plans for the fry. Guppies by themselves can overstock a 90g in just a few months. I had 1 young female provide enough fry that I had several dozen male offspring in my 90g and the females filling up a 20g and two 10s before I found a place to take them all. That's even with keeping all males and females seperate so I only had 1 breeding. You could probably add a gourami or several depending on species or an angel or 2 which would provide a centerpeice fish while helping cut down on the guppy population explosion that's likely to occur in the next month. Most plecos are also a possibility so long as you stay away from really large ones like commons and sailfins. Depending how big you make your current schools and what your going to do with the guppies you could possibly add a third group of small schooling fish. Rainbows would be interesting or a school of 8-10black neons in with the regular neons could be eye catching.

Welcome to FP goth!

If you're into taking pictures, I'd like to see one of that 90 gal. some day!

Is there anything in particular you're interested in adding?

I also agree about increasing the number of hatchet fish.

Are your swordtails a pair? If so, between them and the guppies you do have the potential for a lot of fry. An angel would be nice but might eventually turn your neons into snacks. Pearl gouramis are nice or a snakeskin would fit just fine in a 90g.

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