[jimmyfish]

Hi all,

I recently set-up my first tank (around 5/6 weeks ago). It's a 60 litre tank with a few live plants and the following fish:

2 Silver Sharks
3 Guppies
10 Neon Tetras
2 Sucker fish
3 Balloon Mollies (plus 14 baby balloons that I have in a small hatching tank inside the main tank)

My main question is - how often should the filter cartridges be changed? They're looking pretty dirty now and I've read varying suggestions online of every 2 weeks, every month and even longer.

Any help would be greatly appreciated

Thanks

 

[jimmyfish]

Thanks Guys,

I have three cartridge filters - it was my first tank so I tried getting the full set-up, down the years I'll upgrade to better tanks etc. The tube leading up to the filter is gettind pretty dirty - should this be cleaned or is this beneficial bacteria as well?

Regarding the silver sharks, they are silver bala sharks. I'm aware that they can grow pretty big but was under the impression that this would take a long time and that they would only grow based on their habitat - is this not true?

I recently added a few cherry shrimps to the tank to help clean it up and the silver sharks seem quite keen on those, although the shrimps are a bit too quick for them, however I haven't seen as much of the shrimps as I'd hoped to, they seem to be hiding in my shipwreck ornament away from the sharks and don't come out very much - is this normal? Are they not compatible tank mates?

Thanks

Thanks