Quick question.

**Roxyluvsme13** · 09-20-2010, 05:47 PM

How often do I need to change the filter cartridges for Mongoose's filter? I've never had a filter before this tank and now that I do, I have no idea when to change the cartridge or anything

.

Thanks!

**blue** · 09-20-2010, 09:33 PM

I tried to never change filter cartridges on smaller tanks. I rinsed them out in the water removed during a weekly water change. On my 125g I used rinse half of the media under the faucet one week and rinse the other half the next week. Only time I would replace media is if I was using charcoal to remove medications from the tank.

**IRescue452** · 09-21-2010, 12:44 PM

I rinse mine with used tank water, maybe twice a year if they are lucky. The media in your filter carries all of your beneficial bacteria, so you just want to rinse them with used tank water. Replacing them means going through at least a mini cycle again.

**blue** · 09-21-2010, 11:51 PM

I rinsed mine weekly, but I had stingrays and South American catfish in my tanks. THe only non cats where a small school of Angels. I pretty much had to rinse my media weekly because plecos, and the pair of sting rays are poop machines.

Ild watch the output on the filter and if it starts slowing, rinse the cartridge/media with tank water. The more good bacteria you have the better. With a single betta once or twice a year depending on the size of the tank.

ETA: If you start to notice a decline in the clarity of water, rinse the media.

ETA ETA:Unless you are on a well, allways rinse with tank water!

**Roxyluvsme13** · 09-22-2010, 09:47 AM

Alright, guys, thanks. It's only like a 1 gallon tank, and I have 3 filter replacements if I need them. But 1-2 times a year with tank water unless my water starts to look funky, can do!

What about water changes??? Do I need to do those like a full water change or half of the water or what?

**Christmas_Hamster** · 09-22-2010, 06:11 PM

If you manage to cycle a 1 gallon then you should only need to do partial water changes once a week or so. Maybe less often but you should get a Water Test Kit (drip tests not strips, as strips aren't as accurate) so you can monitor the cycle if you haven't already. If the tank is cycled then you just have to watch for the nirAtes to get too high and that's when you should do a partial water change.