my Personal Observation on the effectiveness of Canister Filter

  • We are currently upgrading MFK. thanks! -neo
it has 2 small dats and a ray , i don't think i'm overstocking it. anyways my ray is a male and the only thing he attacks are female rays( which was the reason why he had been moved to this 75 gallon)
thanks fot the advice i'll try the japanese mat material that i have to see if that's better. used to run a 100 gallon on 2 ac 110 with japanese mat and never had problem like this
 
A 75g is not nearly big enough to house a motory ray, at best it will make for a good sump on an accecptable tank. Rays are also know to have a much higher bioload than most other fish their size and it is common practice to overfilter their tanks as much as possible. Also you need to step up your waterchanges to at minimum once a week as well treat the water with a conditioner such as prime. If you are haveing large spikes in ammonia then you also need to verify that you aren't overfeeding and that all scraps are removed since rays are very messy eaters.
 
Probably cause you dont do nearly enough water changes. Every 3 weeks. Feel bad for your fish. I have a 135, heavily stocked with only 2 xp3s on it. But I do twice a week changes of 40 gallons. I have not had a single issue at all. Maybe you should put some more time into your tank and not rely soley on a filter
 
I have used eheim canisters for 29 yrs aaaaaand NEVER HAD THIS PROBLEM hardly a scientific conclusion IMO
 
I think you need to be doing more than 1 WC every 2-3 weeks... it might only have 3 fish in it, but when you consider the size and bio-load of each fish...
That ray is 10" you say? The standard 75g is only 18" wide, so that means your ray has a grand total of 4" of room on each side of him....

Sorry, I am not trying to "flame" you --- but you really need to do more water changes and get a bigger tank IMO.
 
I use (2) xp3's on my 150, I do 50% water changes every week and have never had any problem . The water come straight out of the well without adding any types of chemicals
 
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