unless u tried to sell your aquarium when it was first introduced then its impossible
Once you've put the fish in your tank, you can't sell them.
Sell it.
you add the fish to the tank and it will just show up.
Its not possible to do that.
Well you could sell some things, you could have 299 gaia cash and than you go to the aquarium market and than go to specials.than buy one of those with gaia cash and then sell it in the market.
If you mean "how do you get 1000 gold in Gaia Online?", it's very easy. By posting, commenting, playing games and checking the AQuarium and Daily Chances, you should get about 1000 gold in one day.
You cannot buy Gaia gold. There are no "safe shops". If you're found "buying gold" (which you're just going to get scammed out of cash), then you can be permabanned. You can, however, use your money to buy Gaia Cash directly from Gaia Online, and sell the items on the marketplace for gold.
You cannot dye your paper on Gaia Online.
You cannot buy gold at an online Gaia Shop, sorry dear. ;)
Gaia Online is designed to be cheat-proof and cheat-free.
There are several ways to, without violating their TOS. Sell your zOMG rings in the Marketplace. Most go for 1k+. Buy some Gaia Cash and get popular items from the Gaia Cash Shop, then sell those in the Marketplace. Do your Daily Chance, check your Aquarium Overseer daily, post, comment, vote on polls, and play games for that extra bit. It takes time, but it's the only way to really get what you want on Gaia.