thanks, im not sure that its food grade, its intentional use is for storage, you can buy them at the dollar tree, but i was wondering if i could build a tank out of fiber or plexiglass? you can buy it in sheets about 2/3 of a centimeter thick, i have a design in mind that will allow me to introduce new fish into my sorority without them being able to hurt eachother so i could observe their reactions to her, sort of in an "L" shape. let me know your opinion.
Starting with a smaller tank, you'd need a smaller (and therefore cheaper) heater + filter. You could also fill your bin halfway to make it 15 gallons, as long as there is 9-10 inches of height. If you have a wal mart near by, the sell a 10 gallon tank with a filter for around $30, you'd still need a heater though.
Sororities have a minimum of 4 fish, because if there is one or two that are really tough, they could pick on the weaker one to the point of death. I'd say 5 is the best number, in a 30 gallon you could do up to 20, in 15 gallons you could do 13-14 and in 10 gallons 7 is the max. You have to buy them all at once because adding new girls into an already claimed territory can end badly.
Hope that covers your questions, feel free to ask more though!
1. You don't need a lining, but getting a thin gravel bed is very recommended for anything over 10 gallon to help cycle your tank. I highly recommend researching the aquarium cycle, either on here or just googling "aquarium nitrogen cycle" It's pretty vital to large tanks. Note it will take a month to complete, during which you can't have any fish, but it is WELL worth it.
2. You can use a 30 gallon bin for your fish, and save up for a tank if you want. As long as the plastic is food grade, it's fine for fish to live in. The most important thing to invest in is a good heater, which will probably be the most expensive thing you need to start with, along with a filter. I recommend aqua clear brand, though others are good too...
im just gunna hit you with my list of q's..... just answer what you can. thanks
1. do i need a lining for the bottem of the tank (sand gravel etc.)
2. if i cant use the 30 gallon containeris there any low-cost tank i could use ( i saw some 5 gallons for about 20 dollars, and thats a little on the high end for me)
3. on that mark, if i can use the 30 gallon container, what sort of filtration/heating device would i need to properly controll it? ( i would really prefer not using the container though)
and fianlly: about soroities, if i have less than 4 female fish in the tank, will the still be agressive?