Rena airpumps are probably the most reliable and silent running that we have seen. These air-pumps supply oxygen to aquariums all over the world, and we at the BigShop know that many of you love your plants as much as your fish! The pumps absorb vibration and are designed to be ultra-quiet. 3 years guarantee from the manufacturer in the US.

Rena 100 is for a 100L tank, with air stone, non return valve and airline.

Rena 200 and 300 for 200L and 300L tanks but for those of you wanting to aerate multiple Oxypots these are great with airline Tees, more airline and 3” or 5” round airstones.

Rena 600 twin outlet for 600L tank and this is the one for Multiflow Large Reservoirs and larger NFT and Flood & Drain active hydroponic systems.

We have a selection of other airstones, including Rena 4” ceramic airstones with the rubber suckers on the bottom. Remember, you are not looking for a large airstone- rather what you need is to create a high pressure of bubbles of oxygen, which will be absorbed into your hydroponic reservoir far more effectively. If using multiple airstones, then choose a larger Rena airpump than you strictly need- this will achieve the aeration that you want and your plants need.

As with everything, you get what you pay for. At the BigShop we strive to offer a selection of choices, but we will always supply the best quality. Rena airpumps are in the "high quality" bracket. Cheaper is often more expensive in the end!