my "dump tank" is one of my most successful start up tanks, thoughts as to why???

Magnum Man

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so it is my biggest tank currently set up, it's a standard 65 gallon... it's really just starting live plants, it has very little substrate, as it was previously a tilapia fry grow out tank, before they were moved to the bigger outside tanks... it's really nothing more that a glass sided tub, right now... I'm slowly making it into a more traditional ( for me ) tank...
maybe it's because many of the fish got moved there from previous tanks, so there is less "new fish death syndrome" , but it has a mixed hodgepodge of fish in it... it will be a nice tank, when I can get some plants going... ( hampered by cold weather... shipping )... I think because of the lack of plants, it does have the most algae issue, of any of my tanks... the tank above this one, a 45 gallon tall, is struggling, and had a similar previous use...

I have 3-45 gallon talls, and while they are all incredible for viewing, all have seemed troublesome, to maintain... I always assumed it was because of the small footprint, which I expected with previous under gravel filters, but now none of the 3 has an under gravel, and one even has 2 hang on tank, and a medium large canister running UV light, and has still been problematic...

maybe the standard 65 gallon shape, and size is just a better size and shape, than most aquariums??? although most of my standard 55 gallons have been pretty good, to start up...

maybe it's because my expectations are lower??? it is my "dump tank"??? many of the residents, I don't have high hopes for, though my wild type swords, and a few pretty rare dwarf cray, also seem to be thriving there...
 
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maybe it's because many of the fish got moved there from previous tanks
Agreed. From what I gather from your posts you are buying fish very regularly and in small groups.
The new fish from varying sources introduce different pathogens that existing fish may have no previous exposure to (hence no resistance).
Additionally the catch/transport/move experience stresses the fish and lowers their resistance to pathogens so they are more susceptible to disease.
 

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