2 Spare Tanks Suggestions

[fatboy8]

I have a 20 and 45 gallon tank laying around my house and I am looking at setting at least one of them back up. I was thinking possibly going the saltwater route and have a few small fish like clownfish or something but I have no previous experience with saltwater. I am also thinking if I set the 45 up maybe a single predator or two. Just in the brainstorming phase looking for a few suggestions

 

[jaws7777]

Rapps has some marbled convicts. If i had a spare tank i would get em

 

[ragin_cajun]

I would make a plants only tank with no fish, really figure out the whole nutrient/light balance thing, then make a HUGE planted tank. Or, perhaps make it a fry tank and start breeding Blackbelts--or Argentea--or Bifa's--in a larger tank. Or maybe a planted tank with a Zebra Pleco?

 

[Jdreal21]

Setting up a quarenteen tank never hurt nobody and do a planted shrimp tank in the 20 just my opinion but I have plenty of extra tanks and neither of those set ups lol