JettsPapa

My first piece of advice would be to make sure you have a market before you get too far along. Many stores will only give store credit instead of cash. You can't go buy groceries or pay your electricity bill with fish store credit. The second piece of advice would be to bring the plants in ready to sell, so all the store has to do it put them on the shelf or in the tank. Have bacopa cuttings in bundles of at least 5 stems, with a plant weight at the bottom. Have the Java moss in clear containers (I like the 5 ounce clear food-safe containers you can get at the grocery store), with a printed label. The regulations regarding whether or not you need to register as a business will vary from one location to another, but I doubt that you would need to. Taxes are another issue. If you're using Paypal for payment they will send the info to the IRS, so be sure you track expenses along with sales for when you file your income tax.

I have several 10 and 20 gallon tanks with 1" of mixed dirt and dry cow manure (I have cattle, so I collected it myself instead of buying it) capped with 2" of either pool filter sand or Black Diamond sandblasting sand. As you might imagine, the cow manure caused gasses to bubble up for months, but the fish and invertebrates didn't seem to mind. Plants are doing very well in it, and I wouldn't hesitate to do it again for display tanks. The only drawback is that when I remove plants to sell invariably some of the soil winds up on top. It doesn't cloud the water, so that's not an issue, so while I don't really mind, some people probably wouldn't like the way it looks.

But make very sure you want duckweed before getting some. It's much more difficult to get rid of than it is to acquire.

Mine turns brown before it drops needles, so if you keep cutting off and discarding the parts with brown needles there shouldn't be an issue.

I do believe that one is a male.

I think that's a female also, but I'm not 100% sure. I know it can be difficult, but can you post a picture looking at the shrimp more from the side and less from the top?

All those are females.

Are you sure you have both sexes? The males are smaller, and usually have less color, so it's not difficult to buy all females.

Or sell some to me. I have a 40 gallon breeder tank with ten or so, and I'd love to add at least that many more.

This reinforces my belief that many fish don't need the narrow range of temperatures that many people struggle to maintain.

This is a wild guess (and so I get notified of replies), but maybe a killifish of some kind?

Is it one of the chain pet stores, or a locally owned individual store? I'm asking because I've struggled keeping commercially raised guppies alive longer than a few weeks, and I've seen numerous reports on this and other forums of other people with similar experience. Hopefully this one will be okay, but I always encourage people to buy guppies from hobby breeders, or from locally owned stores that buy from hobby breeders.

Aquarium Co-op is only one of Aquahuna's customers, so I don't see why they shouldn't sell plants also.

That is not the issue. Baby shrimp will not die with nitrates at 15 ppm (or even considerably higher).

Don't believe everything you read. Using Easy Green according to the directions shouldn't be a problem, and I strongly suspect the shrimp and snail deaths weren't related to the fertilizer or the nitrate levels.