Can I use a half gallon with no filter, airstone, Or anything? All I have in it is gravel. I house fry until they are about 1 - 1 and a half months in a seperate tank. Right now I have 4 fry in a 2 gal
, which held my guppies which are now in my 15 when they are bigger they are going back in the 2 and fry in the 15 gal
Can fry survive for 1 month month in a half in this?