hey everyone in one of my eheim cannisters the inlet and outlet tubes have these wierd green spots growing inside of them and iono if thats algae or bacteria
and i think its the reason why my tank is murky because my other cannister doesnt have it. can any one tell me what this is????
and i think its the reason why my tank is murky because my other cannister doesnt have it. can any one tell me what this is????
happens with both my rena xp filters