Hi Everyone,
Hopefully someone out there can help me decide what to do.....
I recently set up a 10 Gallon aquarium I had kicking around...I think I'm coming down with a serious case of
MTS
I used the natural gravel I had stored in a pail from my old 50 Gallon tank..filled the tank halfway and vacuumed the gravel really well because it really needed it..I filled it back up halfway with tap water, conditioned it (Aqua-Plus) and continued to fill it the rest of the way with water from my established 110 Gallon tank. I also took 2 plants, 1 skull and a sponge filter from the 110 Gallon tank (I didn't rinse them off) oh..and a snail. I used a smaller air pump for the 10 Gallon to run the filter (of course)..the pump I use for the big tank would have blown the water all over the room

I also have a Whisper 10-20 running in the 10 Gallon. I tested the water this morning...0
ammonia, 0
nitrite and 20 Nitrates..doesn't matter because I haven't decided yet what I'm doing with the tank but it's cycled. Now for my dilemma, should I leave the sponge filter in the 10 Gallon (takes up room) or is the Whisper 10-20 good enough? I have been really watching the big tank since I took the sponge filter out and I don't know if it's my imagination or not but the fish seem more relaxed...some different fish are exploring the whole tank and the dither fish are not dithering as much

Should I get another filter for the big tank..I was thinking maybe a bio-wheel or Penguin..or put the sponge filter back in with a power head 802 that I already have instead of the air pump or just leave the Eheim 2217 to do the job? oH...and do you think leaving the sponge filter out of the big tank will change anything as far as water chemistry goes?
Sorry for the long book!...I do appreciate anyone's opinions, advice..suggestions etc.