• Looking to buy a cephalopod? Check out Tomh's Cephs Forum, and this post in particular shares important info about our policies as it relates to responsible ceph-keeping.

filter isues

Joined
Mar 30, 2007
Messages
181
I recently got a cascade 1000 cansiter filter, and i was wondering how often i should change the filter medium, or what signs i should look for to see if it should be changed.

also how much salt do you add to a gallon to get optimal gravity?

thank you
 
You should change or rinse the media in the filter at least weekly.

To determine specific gravity I suggest you get a high quality refractometer - float and swing arm hydrometers are notoriously inaccurate. Specific gravity is not something that can be ball parked - you need to test it.
 
Rinsing the filters seems to be one of those areas where there are many different opinions. I am a purist who likes to use saltwater, but I've met other very good reef keepers who swear by tap water, even though it's supposed to kill bacteria.

Thales has given you good advice about the refractometer - I've never regretted getting the best.

Nancy
 
Just remember to calibrate the refractometer!!!! We had a student try to tell us the local seawater was 55 parts per thousand :shock: it was actually 35 which is normal, but the refractometer needed calibrated!

J
 

Shop Amazon

Shop Amazon
Shop Amazon; support TONMO!
Shop Amazon
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
Back
Top