Since i recently got my HMDT, i picked up a few things at Walmart.
In both my tanks i know have whisper 10i internal filters, as i took the HOB off the 10 just to see if this internal one is better. I stuffed the filter media from the HOB into the internal, to retain the cycle.
After about a day, i noticed like this film over the surface with various things in it. Is it because there is not enough surface current??My 3 gal seems to have it too.....
I feed Omega One betta buffet and change the 10 gal once a week 25% and the 3 gal. twice a week 1 50% and 1 100%
Any ideas? My fish seem unaffected...