The Active Aqua Pro Pump is a 500 GPH submersible water pump — a pump that sits fully immersed in the reservoir and pushes water out through its outlet, used to circulate nutrient solution and drive water through a recirculating hydroponic system. It moves water; it is not an air pump and does not aerate a reservoir on its own. This page reports only what a reachable source states this session — the 500 GPH flow rating — and is deliberately honest about the detailed specifications the maker did not publish on any page that could be fetched this session.
What it is
The Active Aqua Pro Pump is one of Active Aqua’s submersible water pumps, sized in this model at a 500 GPH flow rate. As a submersible pump it runs immersed in the water it moves, with the motor sealed and the water drawn in through the base and forced out of the outlet, so you drop it into the reservoir rather than plumbing it dry. Its job in a grow is water movement: a water pump keeps a reservoir circulating and feeds recirculating loops, top-feed drippers and flood-and-drain fills, in contrast to an air pump, which pushes air through stones to oxygenate the solution. Flow rate is quoted as GPH — gallons per hour, the volume of water the pump can move in an hour at little or no lift; the delivered flow falls as the water has to be raised higher above the pump. Because the detailed spec sheet for this exact model could not be reached this session, the sections below state the flow rating and general pump behaviour, and hold every unpublished figure in the honest-fit section rather than guess it.
Specifications
| Flow rate | 500 GPH |
|---|---|
| Type | Submersible water pump (runs immersed in the reservoir) |
| Max head / lift height | Not published on any source reachable this session (HELD) |
| Power draw (watts) | Not published on any source reachable this session (HELD) |
| Voltage | Not published on any source reachable this session (HELD) |
| Outlet / fitting size | Not published on any source reachable this session (HELD) |
| Dimensions / weight | Not published on any source reachable this session (HELD) |
Only the flow rating could be grounded to a reachable carrying source this session. The maker’s own site was unreachable, and the maker head-height chart that was reachable covers Active Aqua’s separate submersible-pump line, not this Pro Pump model — so its numbers belong to different pumps and are not reproduced here. The maximum head, wattage, voltage, outlet size, dimensions and weight are all held below; confirm them against the unit’s own label or the maker’s spec sheet before you size plumbing or a circuit around it.
Why choose it
- Straightforward submersible operation. It drops into the reservoir and runs immersed, which keeps the motor cool and the install simple — no dry mounting or priming.
- Mid-size circulation. A 500 GPH rating suits keeping a moderate reservoir turning over and feeding top-feed or recirculating loops rather than a single small bucket.
- Water movement, cleanly separated from aeration. Pairing a dedicated water pump with a separate air pump lets you size circulation and oxygenation independently, which is how most reservoir builds are laid out.
Best uses
- Recirculating reservoirs. Keep a moderate nutrient reservoir circulating so the solution stays mixed and evenly fed to the plants.
- Top-feed and drip systems. Drive a top-feed or drip manifold from the reservoir, matching line sizing to the pump’s outlet.
- Flood-and-drain fills. Fill an ebb-and-flow tray on a timer cycle, then let it drain back.
- General water transfer. Move or top up water between reservoirs where a mid-flow submersible pump is enough.
Compatibility
The Pro Pump moves water; it does not include tubing, a timer or a controller, and it is not a substitute for an air pump feeding air stones. Match your tubing to the pump’s outlet and size return lines to its 500 GPH output. Because a submersible pump’s delivered flow drops as it lifts water higher, the usable flow at the top of a tall return run is lower than the free-flow rating, so leave headroom when the pump has to push water up to a raised tray or manifold. The exact outlet / fitting thread size for this model was not published on any source reachable this session and is held below — confirm it against your fittings before ordering adapters.
How it compares
| Model | Flow | Type |
|---|---|---|
| Active Aqua Pro Pump (this pump) | 500 GPH | Submersible water pump |
| Higher-flow submersible/inline pump (e.g. Little Giant 5-MSP, EcoPlus fixed-flow) | Larger reservoir pumps move considerably more water for big recirculating banks and pond loops; exact figures are held here to avoid mixing in specs from a different model. | |
Within a reservoir build this Pro Pump sits at the mid-flow end — above a tiny single-bucket pump and below the high-flow submersible/inline pumps sized for large recirculating systems. Exact competitor figures are held unless separately sourced.
Where it fits
Browse more pumps and circulation gear in the water & air pumps category. Related pumps and pump accessories customers pair with it:
- Little Giant 5-MSP Submersible Pump — a higher-flow submersible water pump for larger recirculating systems.
- EcoPlus Eco Fixed Flow Submersible/Inline Pump — a compact fixed-flow model for small single-reservoir setups.
- EcoPlus Eco Bottom Draw Pump — a small submersible bottom-draw water pump.
- DAB ESYBOX Electronic Water Pressure System — an electronic booster for pressurized water supply.
- EcoPlus Pro Linear Air Pump — a high-output linear-piston air pump for aeration (the aeration half of a reservoir build).
- 4" Air Stone Cylinder — a diffuser stone to pair with an air pump.
Frequently asked questions
How much water does it move? 500 GPH at little or no lift; the delivered flow falls as the pump has to raise water higher.
Is it an air pump? No. It is a water pump — it moves and circulates water; oxygenating a reservoir is the job of a separate air pump and air stones.
Does it run inside the reservoir? Yes — it is a submersible pump that runs immersed in the water.
What is the max head or wattage? Those figures were not published on any source that could be fetched this session, so they are held rather than guessed — confirm them against the unit’s own label.
Who this is for — and who should skip it
Suited: growers who want a simple submersible water pump to circulate a moderate reservoir or drive a top-feed / drip / flood-and-drain loop at around 500 GPH.
Not for / its limits: it is a water pump, not an air pump — it will not aerate a reservoir by itself. A single small bucket or tote does not need this much flow, and a large recirculating bank or pond loop will want a higher-flow pump. Because delivered flow drops with lift height, if you must raise water well above the reservoir, size for the lower flow you will actually get at that height.
HELD (not stated because it could not be sourced this session): the maker’s own site (hydrofarm.com) and every detailed carrying-retailer spec page were unreachable, and the maker head-height chart that was reachable covers Active Aqua’s separate submersible line (no 500 GPH / Pro Pump row), so its numbers were not used. Held as a result: the maximum head / lift height; the wattage, voltage and amperage; the physical dimensions and weight; the outlet / fitting thread size; the power-cord length; the shaft / impeller material; whether it uses a magnetic drive or a foam pre-filter; any UL or safety listing; any adjustable-flow feature; the recommended reservoir size; the maker part number; the warranty term (held per M-05); shelf life (not applicable); and the live retail price (carried by the storefront, not this page). The store lists this unit under SKU HYC-PP500. The flow rating above is grounded to a carrying retailer’s listing because no maker spec sheet for this model could be code-fetched.
Ready to move water in your reservoir? Add to cart, or talk to a grower about sizing a pump to your system.
Sources
- Active Aqua / Hydrofarm (maker) — the maker site (hydrofarm.com) SSL-failed to an anonymous fetch and the sanctioned fetch path (tools/scale/fetch_maker.py) was transport-down (ssh/curl unreachable) this session, so no maker product page for this model could be code-fetched. The maker head-height chart that was reachable (Active Aqua Pump Info Sheet) lists only the AAPW submersible line (AAPW160/250/400/550/800/1000) and carries no 500 GPH / Pro Pump entry, so its figures were not used.
- Amazon — Hydrofarm Active Aqua Pro Pump, 500 GPH (carrying retailer, in the retailer allow-list; listing title states the 500 GPH flow rating; product page body was not retrievable this session, ASIN B0046D90OE): flow rate 500 GPH: https://www.amazon.com/dp/B0046D90OE
- Premier Hydro (operator storefront, Step-3 grounding source; HTTP 200, retrieved 2026-07-08; corroborates the model and flow rating and lists the store SKU): “Active Aqua Pro Pump – 500 GPH”, 500 GPH, SKU HYC-PP500, 4 lb: https://premierhydroshop.com/product/active-aqua-pro-pump-500-gph/
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