Pond water clarity

If green water is spoiling your pond, here are your solutions.

Algicide pond treatments for algae greenwater in ponds

The implications of using algae controls

Without doubt, nuisance algae tops the list of UK pond owners’ complaints. Green water needn’t be a problem for any pond owner who has recirculating water in their pond since ultra violet units (adapted from the food processing industry) have been . . . → Read More: Algicide pond treatments for algae greenwater in ponds

Cloudy pond water – I can’t see my fish!

I installed a new 2000 gallon pond in March of this year, constructed using a liner and incorporating an external multi-chambered filter. I have been adding koi to it since Easter and have noticed that the pond’s clarity has deteriorated from its initial crystal clear state . . . → Read More: Cloudy pond water – I can’t see my fish!

Crystal clear pond water

A stunning way of bringing living, moving splashes of colour into a garden is by keeping fish in a garden pond.

The fish that are routinely kept in ponds are brightly coloured, ornamental varieties of their poorly coloured natural ancestors. However, one of the most common problems . . . → Read More: Crystal clear pond water

Discoloured tinted pond water

A koi pond’s stability is often overlooked as one of the most influential factors in maintaining koi health. We can often be guilty of forever tweaking and adjusting water quality in our quest for ‘perfect’ water quality. With respect to water parameters such as pH and . . . → Read More: Discoloured tinted pond water

Foaming pond surface problems

Water quality is the keystone to successful koi keeping. Remove it and koi health problems are likely to follow. There are many different water quality parameters that require constant monitoring with the results and interpretation of water tests essential to maintain a healthy pond.

he most regularly . . . → Read More: Foaming pond surface problems

Foamy pond surface. Why?

Q: I understand that good water quality is perhaps the most important way of ensuring healthy Koi, and as such, parameters like ammonia, nitrate and pH should be kept within their recommended levels. But what about other measures of water quality, such as how foamy your . . . → Read More: Foamy pond surface. Why?

Green algae in my pond – Help!

Green water and pond algae can make a pond look like pea soup. It can be solved with a UVC.

Q: I have a pond of 1,500-gallons, with 14 koi of varying sizes. The water is pumped at 1,940-gallons per hour through a 3,000-gallon Mag-nit onto a . . . → Read More: Green algae in my pond – Help!

Killing green pond water with a UVc

One of the most widespread problems encountered by koi keepers is green water. A suspension of microscopic algae will bloom under specific favourable conditions, causing the appearance of the pond to deteriorate into a pea green soup in only a couple of days.

Green water can be . . . → Read More: Killing green pond water with a UVc

Milky water problems in koi pond

I have two separate queries which I would like some advice on please. I have a half in and half out 4,400 gallon koi pond.

The pond is filtered on a gravity fed system into a three chamber filter. Filter dimensions are 8ft x 3ft x 3ft. . . . → Read More: Milky water problems in koi pond

Pond Algae and Green water. How can I get a crystal clear pond?

Green water and pond algae problems such as blanketweed and string algae are annoying. The most common problem that ponds experience surprisingly does not relate the to fish, but to plants, – and unwanted ones at that, such as green water and blanketweed.

You can take a . . . → Read More: Pond Algae and Green water. How can I get a crystal clear pond?

Pond algae treatments. What does the label on the bottle mean?

Green water and pond algae problems such as blanketweed and string algae are annoying. The most common problem that ponds experience surprisingly does not relate the to fish, but to plants, – and unwanted ones at that, such as green water and blanketweed.

Algae problems in koi . . . → Read More: Pond algae treatments. What does the label on the bottle mean?

Pond UVc – Algae clarifier

It is not even 30 years since UVCs first became available as a mainstream piece of pond hardware – and so great has been their success and influence on our hobby that a UVc is now widely regarded as a ‘must-have’ on a pond keeper’s shopping . . . → Read More: Pond UVc – Algae clarifier

Pond water changes

As koi keepers we are experts in keeping fish in an enclosed artificial environment that is stocked with an unnaturally high stocking level and fed a relatively large quantity of food.

Consequently, there will come a time when the pond’s ecosystem becomes unbalanced, requiring our input and . . . → Read More: Pond water changes



Kill blanketweed and string algae.