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Tank side

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Building and running a fish rescue and breeding operation

11/02/2026

Mark Dias — preventative treatment day in the big tank. Some folks say Pimafix is a joke. I use it anyway: every 6 to 8 weeks, after a couple of water changes, if anybody looks questionable I dose the whole tank for a couple of days. Pond bottle is the way to go — more concentrated, cheaper per gallon treated. Front Range Aquarium Care, Arvada, Colorado. (303) 589-0053

11/02/2026

Mark Dias — Arvada, Colorado. The red truck rear-ended me while I was sitting still. He flipped over the top of me, landed on top of the white truck, and ended up in the road sideways, facing the wrong way. One second of not paying attention. Slow down, watch the road, and get home to your family.

11/01/2026

Mark Dias — Arvada, Colorado. Everybody knows I keep fish — 80 tanks and a fish rescue at Tankside. But it started on the water. Virginia offshore days: amberjack, mahi, tilefish, bluefish, and big blue cats. Keeping them or catching them, it's always been about the fish.

11/01/2026

Mark Dias — Arvada, Colorado. Potato planting day at Tankside — Part 2. One in the bottom, one dropped into the sump basket where the roots can reach the water, and a few more tucked into the plant pots. That's where the potatoes are gonna live.

11/01/2026

Mark Dias — Arvada, Colorado. The big tank's sump is getting reworked, so these monster catfish need a new home: 2 purebred redtail catfish, 2 tiger shovelnose × redtail hybrids, and 1 purebred tiger shovelnose — all right around 2 feet. Up for adoption or trade for other cichlids, lights, or gear. Message me if you're interested. (303) 589-0053

11/01/2026

Mark Dias — Arvada, Colorado. New experiment at Tankside — growing potatoes in the sump of the big tank. Roots in fish water around the clock, and the fish do the fertilizing. Let's see how they grow.

11/01/2026

Mark Dias — Arvada, Colorado. Green Terror mom and her babies — she is watching over hundreds of fry and every single one of them is growing fast. Mom and babies doing awesome at Tankside.

11/01/2026

Mark Dias — Arvada, Colorado. Late-night feeding time at the big tank — everybody's up at the glass before the food even hits the water. 2,900 gallons of Central & South American cichlids at Tankside.

10/31/2026

Mark Dias — Arvada, Colorado. Wrong-way driver on Wadsworth, just north of 80th — one of the busiest and most dangerous intersections around — turning into the King Soopers. Broad daylight, heavy traffic. Lucky nobody was hurt or killed. Pay attention out there, people.

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Arvada, CO
80001-80007 AND 80403

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