Originally Posted by caseybrett
Hi, anyone else had problems with tetras getting sucked into the filter intake? When i first got some tetras, 2 of them completely disappeared in the first few days, no bodies even. Then i found a third one sticking out of the filter and it confirmed what i'd been reading that they could be getting sucked into the filter. As suggested by someone then, i have covered the intake with some nylon tights to prevent this happening. Haven't lost one since (except one to swim bladder infection). Only thing is i'm worried its affecting the performance of the filter. Is there anything else i could use?
Would maybe not be so quick to blame the filter intake for death of tetra's.
Healthy fish can easily avoid being drawn near the intake in the majority of tank's.
Under your aquarium's ..you list Mollies and Cardinal tetra's.
While both species appreciate warm water,,the mollies appreciate/need hard,alkaline water and the Cardinal tetra's need softer water.(two different need's) One or the other of these, will not be comfortable in the long run.
When water does not suit the fishes being kept,,then they become stressed,sickly,and could easily be drawn to the intake as they become weaker and die.
Snails and other fishes would readily eat from the remains of the dead fish and this could be why no bodies were found.
Just a heads up should you observe more cardinal death's.