# aquarium question **URL:** \ **Category:** Shift518 Off Topic\ **Created:** [December 12, 2010, 2:41pm UTC](https://forums.speedlife.net/t/aquarium-question/255964 "2010-12-12T14:41:23Z")\ **Posts on this page:** 1\ **Showing post:** 52
**Author:** ![DUKE\_LADUKE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/duke_laduke/32/6317_2.png) [@DUKE\_LADUKE](https://forums.speedlife.net/u/DUKE_LADUKE)\ **Post date:** [December 12, 2010, 6:33pm UTC](https://forums.speedlife.net/t/aquarium-question/255964/52 "2010-12-12T18:33:35Z")
> [@Stupid newman, should have held out](https://forums.speedlife.net/t/stupid-newman-should-have-held-out/37981/8): > > I put the algae eater from the other tank in the new one. We got some algae wafers with that fish a while ago. I fed the algae eater one of those when I fed the goldfish. I know I need to let the tank cycle. Would taking the filter cartridge from the old tank and switching it with one of the new ones help? Yes that would help, still the plecos arnt really the hardiest when cycling the tank .I wouldnt start testing shit and water changes just yet . Usually you do a 30% changee once a month .Sometimes you can more frequently like 10% weekly if you have alot of fish .But dont change it till the tank is done cycling which ususally take 4-6 weeks. You wouldnt have to test the tank till about 2 weeks . You mainly wanna focus on the ammonia , nitrate and nitrite . --- _[View the full topic](https://forums.speedlife.net/t/aquarium-question/255964)._