Thanks bro !!!
I will consider having anemone then .. I mean every 4 to 5 days change water.
bare bottom tank, no sand bed.
I am not very new as i keep a 4x2x2 before,, but that time no sump no chiller, my tank temp quite high.. the coral and fish will not keep long. ( 4 yrs ago ) i have since decomm my tank and throw the tank away.
So i now consider having small chiller which is more affordable to me.
I hope i can make it with this cude