Hi i have a 20 gallon long tank avaible and i would like to breed bettas.. ive bred them before about 2 times but that was about 3-4 years ago... any tips and advice would be nice as in temps.. i will get the male as soon as possible probably tomorrow.. for the 20 gallon for breeding should i use the whole tank? as in like when the spawn like thats alot of space so thats alot of room for the female to run and male cant catch.. so should i put only 1 female and 1 male in the 20 gallon long? or what should i do.. as for substates tell me what to put.. i have heaters.. filters.. the sponge filters... food.. fry food.. plants whatever u need just need help setting it up and pre paring it thanks