Aquarium Tech Data

Abstract baseline schedule grid illustration in aqua-cyan on dark navy — decorative header for Spec Baseline

Aquarium equipment, compared on published specifications

Search for almost any piece of aquarium equipment and you get forum threads and blog opinion. The collective experience in those threads is real and hard-won, and it has one gap: nobody puts the numbers side by side. That is the only useful thing a site like this can add.

What this site is

We keep no tank, run no test rig and evaluate nothing in use. We read manufacturer specifications across whole categories, convert them into consistent units, and publish where each category actually sits — quartiles rather than rankings, because a leaderboard sorts for extreme values and in retail data the extreme values are usually errors.

No star ratings, no review counts, no prices, and no claim about what will happen in your tank.

Where the numbers hold up

We checked 1,000 extracted values across 458 products against the units their source text carried. Four of eight categories cleared both gates.

Wave Makers & Circulation

The best-covered category here: flow on 85% of listings, power on 72%. Flow per watt is computable across the whole category, which matters for equipment that runs continuously and puts its waste heat into your water.

Heaters

Wattage on 95% and rated tank volume on 82%, both read out of product titles. That makes watts-per-gallon computable — and the measured median lands inside the 3–5 W/gal rule the hobby quotes, which it did not at half this sample.

Dosing Pumps

Dose rate in milliliters per minute, where lower is usually better. This category had to be scraped twice, and the comparison page explains why — it is the clearest illustration on the site of how spec data goes wrong.

The categories we cover without comparing

Five did not clear the gates. Their pages say so and explain what is missing, rather than publishing a thin table that implies coverage the data cannot support.

Temperature Controllers

Switched wattage is a rating of the load, not a property of the controller. Probe count, dual-probe redundancy and stated accuracy are unpublished — but this is the category where redundancy matters more than any spec.

Water Quality Monitors

Measured parameters, probe count and accuracy are absent from structured data, and the category mixes continuous monitors with disposable test strips.

The limit that shapes every page here

The equipment on this site sits between your livestock and a set of conditions that will kill them. A heater controller that fails closed cooks a tank; a doser that over-delivers alkalinity can take down a reef in hours. No page here will tell you a device will keep anything alive. A specification describes what something is built to do under conditions the manufacturer chose — not what it does when a probe drifts or a relay welds shut.

The practical consequence, repeated across the equipment pages: redundancy beats specification. A second independent thermostat protects a tank in a way no single controller’s spec sheet can.

How to use this

  1. Start with the hub for the category you are shopping.
  2. Work out your own requirement first — turnover for flow, temperature lift for heat, dose volume for supplements. These come from your tank and your livestock, not from us.
  3. Then open the comparison page and see where a candidate falls.
  4. Verify anything decision-critical against the manufacturer’s own page. Our figures are a snapshot and each page carries its date.

Where to start, before the equipment

An aquarium fails on the thing that was not automated, not the thing that was automated badly. Our buying guides take the three decisions that come before any purchase.