BactoPlus Fresh PSB 2 Litres

BactoPlus Fresh PSB 2 Litres

Live photosynthetic bacteria to support the breakdown of organic material in pond water

BactoPlus Fresh PSB is a liquid bacterial additive for pond-water maintenance. Its name refers to photosynthetic bacteria, which Aquadistri describes as helping to digest organic material and improve the pond environment. This listing supplies the 2-litre bottle for use in pond water, manufacturer reference 05050390.

Fresh PSB is produced in the Netherlands and contains living bacteria. The manufacturer confirms that no dyes are added. Its natural red appearance is explained in the BactoPlus brochure as coming from pigments produced by the bacteria, rather than added colouring.

Product details

What makes Fresh PSB different?

Aquadistri describes these bacteria as using light in their activity, unlike the oxygen-dependent filter bacteria discussed elsewhere in the BactoPlus range. Fresh PSB is intended to support the processing of organic material in pond water. That role helps explain why it is offered as a separate product from a conventional filter starter.

The manufacturer’s explanation of the bacteria does not mean that your fish or biological filter can operate without adequate oxygen. Keep the pond’s aeration and filtration appropriate to the system. The application of Fresh PSB should fit into that wider care routine, with any equipment changes governed by the current product instructions.

Fresh PSB, Filter Start and Food Spray

If you are commissioning a biological filter, BactoPlus Filter Start 1 Litre is a separate product aimed at that task. Fresh PSB focuses on photosynthetic bacterial activity and organic material. Decide what the pond needs before choosing an additive rather than treating all bacterial products as interchangeable.

Fresh PSB Food Spray is another separate product in the range, packaged for application to fish food. This 2-litre listing is the pond-water product. Use its own label directions and coverage information; the Food Spray’s feed quantities and feeding instructions should not be used to calculate an application to the pond.

Understanding the 200,000-litre coverage

The current UK manufacturer catalogue states that the 2,000 ml pack is sufficient for 200,000 litres of pond water. This is a pack-coverage figure, not a complete maintenance programme. Follow the supplied bottle instructions for the amount to apply, the timing of applications and any initial or repeat course.

Work from an accurate system volume and use clean measuring equipment. Where your pond or filtration has changed since the volume was calculated, update that record first. Keep a note of how much product was added and when, so subsequent observations can be assessed against a clear application history.

Reduce the organic load as well

Leaves, dead plant material and uneaten food can all contribute to organic waste in a pond. Oase’s maintenance guidance explains that decomposing material adds nutrients and can deplete oxygen. Removing visible debris remains useful even when you are using a bacterial maintenance product.

Collect fallen leaves before they sink where practical, remove dead plant material and check places where debris collects. Surface skimmers and suitable pond-cleaning equipment can help with physical removal. Fresh PSB’s role in breaking down organic material should be considered alongside these tasks, rather than as a reason to leave large accumulations in place.

Observe feeding as part of the same routine. If food is being left uneaten, review the amount offered and the fishes’ behaviour instead of allowing it to collect. Record substantial cleaning or feeding changes together with applications, since several factors can influence the pond’s appearance over the same period.

Check water quality objectively

Water clarity is only one observation. Use a suitable kit such as the Colombo Pond Test Lab Professional to check ammonia and nitrite alongside the supporting parameters relevant to your system. Ammonia cannot be assessed reliably by smell or by looking at the water.

Keep dated readings so a trend can be distinguished from an isolated result. Persistent problems need investigation of the pond and filter conditions, even if the water looks clearer. Note any changes to fish numbers, maintenance or other treatments when seeking help with the results.

Caring for a live bacterial product

Check the bottle’s expiry information and follow its storage instructions, including guidance concerning light and temperature. Photosynthetic bacteria should not automatically be stored according to advice for a different additive. Retain the original labelled bottle and use the manufacturer’s directions for handling any remainder.

Read the guidance before combining Fresh PSB with medication or changing UV or other treatment equipment. For advice about its place in your maintenance routine, contact That Pond Guy with your pond volume, filtration details, current test results and a list of products already being used.