The tank that I have is one of the Hawkeye 5 gallon hexagon acrylic tanks. I was just looking into buying some cartridges for the filter that came with the tank, but I have not had any luck:( The cartridge that is currently on it is already really dirty looking (is brown in a few spots) so I thought that I would go ahead and switch the filter cartridge out. I was wondering if this would be a good idea? Also, I was wondering where I could purchase the replacement cartridges for the tank since my local Wal-Mart does not carry them.
When I was looking online for the cartridges that I could order through the manufacturers, I noticed that neither of the replacement cartridges look like the one that is in my current filter. According to the little "pamphlet" that came with the kit, it is a 5-15 gallon power filter, model number HA-0515. I know that a few people on this forum have this tank and I figured that this would be the best place to ask about it. When I was searching online, a lot of the reviewers were saying that they had no other choice but to order the replacement cartridges from the manufacturer.
I really like this filter system because I can adjust the water flow (even though I still have to baffle it). I would not want to buy a whole new filtration system, but if I must I will.