I do not have a powerhead, do i need one??
Some riser tubes use air bubbles driven by air pumps, others use powerheads (one of top of each riser). Did yours come with air stones? Do the instructions mention air stones at all? Are there short pieces of rigid tubing enclosed with the kit. Probably should have been my first question: how big is the tank?
I've used UGFs in the past, but mine only had two tubes and were powered by air bubbles - suitable (maybe) only for a small tank. I also used it in my livebearer bredding tank. Both of my FW
tanks (55 gal
and 90 gal
) have external filters now, so I'm a bit "out of the loop" on undergravels.
standard 55 lbs LR
, 60 lb live sand, 10 gal
sump/refugium. Urchin skimmer, mag7 pump, 3 x 96W PC
combination 10,000K/actinic bulb, 2 blue LED moonlights
1.024, temp 79.5, pH 8.4
Livestock I added:
1 skunk cleaner. 12 hermits: red, scarlet, blue. 15 or so assorted snails. Discosomas, Ricordia, Rhodactis mushroom corals, chaetomorpha (sump), 1 feather duster, Montipora digitata
, Montipora capricornis, Montipora hispids.
assorted zoos, Xenia, Kenya tree coral, green Sinularia, green star polyps, branching hammer coral, bubble coral, Devil's hand leather. Yellow chromis, purple firefish.
Hitchhikers: the usual suspects :crabs, bristles, urchin, mantis shrimp (now in exile in mantis tank)
List of possible/likely newcomers:
Feather duster. PJ cardinal, Bangghai cardinal, Firefish goby, Clownfish, Neon goby, Yellow watchman goby, Orchid dottyback. Various corals.