Just wondering how long do you think I can use a ninety G for with a baby silver?
I want it to be planted with black sand, a few power heads with some CO2. And maybe some Dats or a catfish.
Wadya think?

B./The HappenMaker

OK lets begin... Although a 90 gallon tall looks like a big tank it really doesn't have a large foot print. the larger the foot print the bigger the fish, although there are some exceptions, to sallow is no good either.
Silver arowanas get huge, but shouls make a year in your tank if your not power feeding it. I do not recomend this because a minimum of 180 gallon is recomended for aro's and i say larger for silvers. As for some other fish you have mentioned in other threads ...no do not get a zebra shovel nose unless you have a much larger tank already to go. These cat fish along with redtails cats are eating and growing machienes and out grow your tank in months after they eat your aro. My zebra oit grew my 220 in a year. Datnoids are great i would recomend Indo's for your first one's easy to look after a nd grow, but they too will out grow your 90 gal in time. and food costs for these fish are through the roof. I appaued you for asking questions though its a sign of a good fish keeper. its better to ask fist then to find a home for a whale after its grown. If you need any more ideas just ask i've had a 90 gallon for 10 years and have kept many spieces in it over the years.

How big is the arowana now? I can tell you it will can get well over 18" in a year, but the rate at which it gets there depends on your feeding schedule (and water quality). Dats are slow growing so they are a good choice, and depending on the catfish and the size at which you get it could or could not be the best idea.

But to answer your question I'm guessing you could keep the aro in that tank from 6-8 months depending....

for a baby arowana then it is fine till it out grows. I do know some people who keeps a large 2 foot arowana in a 55 gallon but that is just cruel. I would recommend at least a 125gal tank for 1 silver arowana.