A couple weeks ago, bought an AquaC Remora HOT skimmer(with the maxi-jet 1200) from the store emac works at and I'm running it on my 20-high, and it has worked splendidly. The stuff it pulls out isn't exactly black like on larger tanks, but it is about like dark urine, 'cept with chunks of fish poo in it. I'm pretty sure it is overkill, but I like the fact that I can pretty much feed as much or as little as I want and not worry about nitrate ****es and the like.

Since I've had it on there, I've been able to go about a week and a half between water changes with tests reading near zero for nitrates, zero on nitrites, and zero on ammonia, with alkalinity and such being at perfect levels.

The Remora skims very well for a HOT. My tank inhabitants couldn't be happier....

...ok maybe if they had a halide, but that's another thread!