they are feeder fish.maximum about 4". i have a marineland biowheel.i dont know what size.also there is an internal filter that provides a ton of turnover.
i was wondering,are feeder goldfish called common goldfish or comet?
i will keep an eye out for them.
so i did endup getting the tank at a garage sale. as i said it came with the two filters.i found out what they are.
The internal one is a fluval 4 plus:it provides 260 gph.
The hob is the marineland emperor 280 biowheel: with 280gph.
thats 540gph of filtration,thats really close to 10x
also they came with no filter media so i packed the hob with bioballs and filter floss and the internal with just floss. i know these filters will work because 1 i had the same media in a turtle tank filter (like 3 million times messier than and freshwater fish), and a pond filter in my backyard.
thanks for all the help i love this forum