So I bought a dozen Marci rainbowfish and were told they would get no bigger than 3" or 4" well after looking at tons of photos online, I am 95% sure they are Parkinsoni and they are now about 5" or 6". I had them in a 40 breeder and I just upgraded them to my moderately planted 55 gallon setup where the whole mid and top is an open free swim for them. I rehomed all of the fish that were in that 55gal except for 6 emerald corys. I also added their 280gph canister to the 280gph canister that was already on the 55 so I am 10x filtered. They don't seem happy. I know they should be in at least a 6' tank but I just can't do that anytime soon. The store that I usually give my fish up to won't take them because they don't deal with rainbows for some reason and large freshwater tanks don't seem to be a common hobby in my local area.
Is there anything I can do to make them even slightly more comfortable? Create a lengthwise current for them to swim into so it gives the illusion of more swimming space? Go from moderately to heavily planted? Feed them live foods?
I do feel terrible that they don't have more room but I have tried my absolute best to make this tank as good of a home for them as I can think of.
Any suggestions are welcomed!
Is there anything I can do to make them even slightly more comfortable? Create a lengthwise current for them to swim into so it gives the illusion of more swimming space? Go from moderately to heavily planted? Feed them live foods?
I do feel terrible that they don't have more room but I have tried my absolute best to make this tank as good of a home for them as I can think of.
Any suggestions are welcomed!