I have a small 30x30x30 27 litre tank just over 7 gal i have abt 3 mm sand bottom to fake java ferns and a skull a 50 wantt heater and an awua one 350 litre gilter on the tank it is holding 2 my guppies that got ther tails shredded in my 120g so i put them in here could i start a little breeding projest to see how much u can male with a simple setup or is it to small and i vould have 2m 2f guppies amything else small and can breed in tank with them and maybe some shrimp anything i can add ?