we have bought this for Arowana 8", Oscar's 9", 7" we also have in another tank silver shark, 6" black Ghost knife will they be ok together with a sailfine plec?? if we use sand, Fluval FX5, 2 300w Heaters, we have three medium pieces of bog wood soaking in the pond but not sure we will use it all if any please reply with any ideas and if i posted it in the wrong place tell me wher i should post it
