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The Spawning Pool-- 75g shallow square

128352 Views 109 Replies 70 Participants Last post by  MPdesign
Hello TPT, here’s to documenting the life of my bog+pond.

36x36x14 rimless tank, 1/2" Starphire glass, open top

Filtration/circulation-- Fluval 406, Koralia 425, Koralia 240
Heating-- Marineland 300W
Lighting-- Natural sunlight supplemented by a Kessil spotlight

No dosing
No CO2

125 lbs Eco-Complete, 36 root tabs
Die kraken driftwood (courtesy T. Barr)
Locally-collected rocks

Kingdom Plantae
Aquatics- Cryptocoryne sp., Microsorum sp., Nymphaea zenkeri, Sagittaria subulata
Floaters-- Limnobium sp.
Marginals & emergents-- Saururus cernuus, Houttuynia cordata 'Chameleon', Pontederia cordata, Colocasia esculent 'Black Magic', Ruellia brittoniana, Canna 'Pink Sunburst', Echinodorus cordifolius, E. palaefolius

Kingdom Animalia
Vertebrates-- Ctenopoma acutirostre, Melanotaenia boesemani, Poecilia wingei, Otocinclus sp.
Invertebrates-- Ramshorns, pond snails, trumpet snails, bladder snails, feeder shrimp

The bog+pond replaces my extremely overgrown 20g High and 5.5g shrimp tank.

The tank builder was Coast to Coast Custom Aquariums in NJ. Unbelievable customer service, a real class-act. Craftsmanship and attention to details are incredible also. The underside is lined with poplar and all edges are beveled and machine-polished. Fit and finish are superb. I planned on buying that "one tank" and this is it.

The stand I constructed is made of 2x4s with panels stained a dark walnut. The panels are attached magnetically and the space underneath is for supplies and misc.

The tank is situated in a corner of a room directly under four windows. The room faces east so the tank itself receives direct sunlight a few hours a day in the morning only. The rest of the day, the tank receives indirect light slightly diffused by the window screens. The supplemental Kessil Amazon Sun runs two 5-hour photoperiods with a 4-hour siesta in the middle of the day.

The Fluval runs with sponges, bio-balls, and Purigen. With the large surface area and the concern about stagnant water, I went with two smaller powerheads. The Koralias along with the Fluval give me about 10x turnover per hour after accounting for some organic buildup.

There is no testing, no dosing, no CO2, and no water changes unless absolutely necessary. Just top-offs as I see fit with dechlorinated water. I lose anywhere from 1-2 gallons or more per day depending on conditions. In warmer weather, I combat the slight humidity in the room with a dehumidifier going nearby.

I wanted a low-maintenance tank that I could come home to at the end of the day and sit down and enjoy (much like the 20g I broke down). My submerged plant selection reflects that goal so there will be no monkeying at all on the bottom and in the water column. I went with all heavy root feeders and a couple variety of java fern (regular and Philippine). The half dozen crypt species, dwarf sag, and single red tiger lotus all get their nutrients from the root tabs, which I will replace every 2-3 months, more or less, so I expect the Eco-Complete to get better with time.

I went mainly with hardy bog and pond plants for the riparium section, all transplants (harhar) from the previous tank. The lizard's tail and chameleon plant are slowly taking over. The cordifolius sword is shooting new leaves out the water every few days.

In the pond, the Leopard bush fish hunts shrimp, unwary Endler fry/juvies, and innocent skinny-dippers. Once it gets large enough to swallow otos (which won’t be for a couple years at least), I will replace them with bristlenose plecos. Even with the predator, the livebearers population should be sustainable for the foreseeable future. There is approximately a 1:5 adult male to adult female ratio with roughly half a dozen males, and with a gestation time of just 23 days, the spawning pool sees some action. The males are constantly chasing the females in the harem. :eek: Right now, there are roughly 75 fry of all sizes out and about. And finally, the rainbows and otos swim freely and mind their business.

The juvenile delinquents

The settlers

The stranger next door...

The creepy crawlers rule their underworld

That's it for now. Thanks for reading, any questions at all, just ask!
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