wrote:
I currently have eight small Angels (dime to quarter size) in a 20 gal
tank. I am growing them out in this tank for a few months before I
move them over to a 90 gal. The twenty has a Whisper #2 Power filter,
a UGF filter with 25 lbs of gravel, and about five small Amazon Sword
plants. The 90 gal is not currently set up but I have a Emporer 400
and a UGF with 100 lbs of gravel.

I am hoping to move the Whisper #2, the gravel, and the plants from the
20 into the 90 in order to do a non-cycling transfer. Will this work ?
I have heard that filtration is related more to fish load than tank
size. However, this seems like quite a jump.

I originally set up the 20 with a non-cycling transfer by running the
Whisper #2 on another tank for a few months before setting up the 20.

Thanks for all the advice everyone. I thought I'd let you know how
things are going. I got the sponge insert for the 20. The angels are
thriving and growing. The electric work has been done so that I can
set up the 90 (I needed a new outlet). The angels will go into the 90
within the week.

I got reverse flow kits for the 90. I'll be running an RUGF without
live plants. I do intend to get some artificial plants...but those
won't cause problems with root growth in the RUGF. Plus I will save in
terms of not needing to do a lighting upgrade to support live plants.