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  1. Problem with oxygenation?

    Beginner Freshwater Aquarium
    Hello all, Relatively new aquarist- 25L planted tank cycled for 2 weeks before adding fish. Now into week two of fish being in the tank and started noticing that the neons were at the very surface of the water and gasping quite a lot. Have a Ciano CF 40 filter originally with spraybar and...
  2. Hydrodynamic Mattenfilters

    TFK U.S. Classifieds
    Hey everyone! I'm sure by now a lot of hobbyists have heard of the Poret foam filters for their tanks... We make a similar filter that we simply call the Hydrodynamic Mattenfilter. These filters are a 40ppi 2" thick black foam material that is made in the USA. We CNC cut each filter prior to...
  3. Why is my water cloudy w/ DIY filter cartridges?

    Freshwater and Tropical Fish
    I have a 20 gallon high tank with an Aqueon Quiet Flow 20 filter. The filter replacement cartridges are pricy and didn't do too great at getting clear water so I am trying my hand at DIY cartridges' where I cut to fit them in the plastic cartridge holder in the filter. In the flow of water I...
  4. Help! corydoras habrosus traumatized by filter

    Beginner Freshwater Aquarium
    Hello guys. I've had fish for years but usually neon tetras or guppies. I used to have a pleco but he got big (never believe petco) and started to eat my other fish, so I didn't want to go through that again. This time around I wanted to try cory catfish. Since I only have a 10 gallon I thought...
  5. Bio Wheel Issue

    Beginner Freshwater Aquarium
    I have a Penguin 150 filter system in my 20 tank. I noticed over the last week or so the bio wheel was slowing down and would stop from time to time. Over the weekend, it stopped rotating completely. 1. Is this an issue? 2. How do I keep it moving? I cleaned the entire filter housing, the...
  6. Filterless...?

    Beginner Freshwater Aquarium
    Hi guys, I've been a fish keeper for a few years but have never been filter-less for obvious reasons. I've had to downscale my tank due to moving house but currently have a relatively heavily planted 40L tank. It doesn't have any live stock but I was debating adding a Betta just because I love...
  7. Filtration for 30 gallon/100L planted tank

    Beginner Freshwater Aquarium
    Hi guys. new here! Im just about to start up an aquarium again. Ive kept my old 30 gallon tank but got rid of everything else to start fresh. So now I'm planning everything from the bottom to the top. I'm decided to build a planted aquarium with just basic plants e.g. Anubia, Java Moss, Java...
  8. Buying Used Eheim 2217

    Advanced Freshwater Discussion
    I am thinking about replacing my HOB filter with a used Eheim 2217 canister filter off craigslist for $40. Is this a good idea? How can I clean the filter? I will be getting new media/using my current media. Do I need to replace anything else (tubes, other parts)? Thanks.
  9. Upgrading filter

    Freshwater Aquarium Equipment
    I'm wanting to upgrade my filter, I'll be getting a 30 gallon tank soon, and I plan on having a big community, for the fish I want, I'll be find with a 30 gallon, but a 30 gallon filter will not do. I need at least one or two filters that works for about 50 gallons. Right now, I switched from a...
  10. Top Fin 20 Power Filter Cleaning Procedure

    Beginner Freshwater Aquarium
    Hi, I am fairly new to the amazing hobby of fish keeping. It has been a month and it is time for a water change, and filter clean up. Now I was wondering what to do with the black bio sponge (where the beneficial bacteria are). Do I dispose of it or do I keep it there forever? Thanks Guys...
  11. Filter for 46 Gal Discus Aquarium HOB vs Canister??

    Freshwater and Tropical Fish
    Hello everyone!! I recently moved and I'm planning on upgrading my 15 gal column tank to a 46 gallon bow front. I have 3 years experience and would like to try a discus aquarium. I plan on keeping lots of live plants to provide a "natural" home for the fish. As of right now I only have the tank...
  12. Hard Water Question

    Beginner Freshwater Aquarium
    Okay so I have a question... I normally used filtered water when performing my water changes, but my filter needs to be changed (When i am in filtered mode, its coming out in a tiiiiiny stream.) So like the idiot I am, instead of just running to Walmart to get a new filter, I just decided to...
  13. I can't get my canister filter working right

    Freshwater Aquarium Equipment
    I'm new to this whole canister filter thing and personally it's been such a horrid experience I hate them. I was given a used Eheim professional 2 that had only been used for a few months. I was given no instructions and have basically just gone off what I've found on the Internet. I've had one...
  14. Swapping filters between two tanks?

    Beginner Freshwater Aquarium
    I have two well established tanks right now. One is a 20L community tank while the other is a 10 gallon that only has a male betta. I figured out recently that I am wasting filtration capacity with each of my filters. The community has a filter good for 10 gallons while the betta has a filter...
  15. Fluval 305 Filter Stopped Working

    Beginner Freshwater Aquarium
    Hi all I just took my fluval 305 external filter off for cleaning and put it back together. Meanwhile I also noticed that the pipes were a bit too long for my tank so I shortened them to be exact fit (no slack). I filled the canister with water until I could see it from the hoses. I connected...
  16. Why isn't my filter working? It ex working before and now it's not

    Beginner Freshwater Aquarium
    I tested in a bucket and it work, the brand of the filter is hopar canister external. I change one pipe since it was really nasty and I put the two tubes into my tank and it's not doing anything at all!!! It has in and out outlet and I tried sucking both of the tubes but it didn't start, it's...
  17. Can I use Air pump instead of filter? for fishless cycle

    Beginner Freshwater Aquarium
    I set up another tank (One without plants) I used my filter and its broken i think. Can I use a air pump for the fishless cycle instead? and then evently add filter when i get fish.
  18. Water level spikes in my tank? High levels of Ammonia

    Beginner Freshwater Aquarium
    I found brown slime in my filter? can that cause all the water levels to go up? I have no fish but i do have two plants in my tank, I think it may be a root that got into the sponge? My filter doesn't have carbon pad, should I get noodles? do I need carbon pad? ( I ask the staff and they said...
  19. I started cycling? Had few problems all ready with cycling all the levels spike?

    Beginner Freshwater Aquarium
    I found brown slime in my filter? can that cause all the water levels to go up? I have no fish but i do have two plants in my tank, I think it may be a root that got into the sponge? My filter doesn't have carbon pad, should I get noodles? do i need carbon pad? ( i ask the staff and they said...
  20. Help choosing filter for a 20-gal tank

    Beginner Freshwater Aquarium
    Now that my new 20-gal tank seems to be cycling, I am starting to make plans for adding fish and plants over the next few months. Based on one hypothetical configuration with 5 Zebra Danios, 5 Cardinal Tetras, and 3 Sterba's Corys, AqAdvisor (AqAdvisor - Intelligent Freshwater Tropical Fish...