Miles_hot
Fish Addict
I don't know your filter however I would note that
1) you shouldn't change the filters as often as suggested by the manufacturers - this is just a spares/money scam - sponges only need to be changed when they are physically getting past it (at least 16 washes)
2) rather than replace wash - in a bucket of tank water (absolutely not tap water as the chlorine will kill the bacteria)
3) when replacing the primary bio media in your filter try not to replace more than 1/3 at a time. This sounds like it could be difficult in your case; either get into the replaceable cartridge or get another filter - you're right in saying that you'll be into a brand new cycle every time you replace the filter if you're throwing all the bacteria out each time!
If you haven't already have a read of the Beginner's information at the top of the forum - it is really good!
Regards
Miles
1) you shouldn't change the filters as often as suggested by the manufacturers - this is just a spares/money scam - sponges only need to be changed when they are physically getting past it (at least 16 washes)
2) rather than replace wash - in a bucket of tank water (absolutely not tap water as the chlorine will kill the bacteria)
3) when replacing the primary bio media in your filter try not to replace more than 1/3 at a time. This sounds like it could be difficult in your case; either get into the replaceable cartridge or get another filter - you're right in saying that you'll be into a brand new cycle every time you replace the filter if you're throwing all the bacteria out each time!
If you haven't already have a read of the Beginner's information at the top of the forum - it is really good!
Regards
Miles

