Knowledge Base - Page 3 of 19

Can filters be placed on the outside of the pond?

Question: I am looking at the Tetra back-flushable Filter. Can it be placed (on the outside of the pond) below water level? We have two ponds, one is in ground and the water goes to the filter and then enters the above ground pond where the water moves to a water fall and returns to…

What is the easiest, lowest maintenance filtration system?

Question: I have a new (installed last fall), large (20′ X 40′ 4′-5′ deep) lined pond located in Northern Minnesota. I have a lighted floating fountain and a waterfall. I do not plan to have live fish of any kind and I currently have no filtration. What is the easiest, lowest maintenance filtration system I…

What do I look for in a filter?

Question: Thanks for the advise concerning floating alge in my pond. I checked my ph and it is okay, so I decided to go for a larger filter. I looked at you tube but couldn’t make out what type of filter you had installed that kept the water so clear. My pond is 2000 gallons…

Squirting water

Question: My Cyprio Pressurized filter is squirting water through the cleaning indicator at the top of the filter. Should I replace the indicator or buy a new filter? I’m concerned that this may be a clue to the filter going bad. Answer: Occasionally the little gasket where you screw in the indicator becomes worn or…

Fish eggs

Question: I was wondering do goldfish lay eggs or do they have live birth? How about Koi. Is it possible for baby fish to be sucked up to the Bog area with the pump? Thanks Gary. Answer: Both Goldfish and Koi lay eggs. The eggs are very sticky, and they lay thousands of them. Although…

Can I add cat fish to my pond?

Question: Can I add an Albino Corridos Cat Fish to my pond. Are they fish eaters. I have baby koi less than a 1/8 long in the pond. D.H. Answer: Almost any fish will eat small baby fish. Catfish are not recommended in the pond for other reasons, mainly because they are bottom feeders and…

Torn fins on fish

Question: I went out of town for the weekend and when I returned. One of my Shubunkins fins had been eaten and torn apart. She is still alive I put her in a small holding tank to see if she will recover. They have been in the pond for 6 months together with no problems.…

Stop feeding at what temp?

Question: I heard you should stop feeding goldfish the end of Nov, which is what I did. But instead of being dormant they are still swimming around and look lively. I have a heater to keep a thawed spot and I kept my pump running. Should I feed them? Thanks:) Answer: If the pond water…

Losing fish in Summer

Question: I have a thousand gallon preformed pond with gold fish. I lost 8 large and seemingly healthy fish during this summer. We had some triple digit temperature days so could this have caused the kill? I have the pond covered with water hyacinth and water lily but it it is the direct sun. Could…

Fish hiding?

Question: We are treating our pond for string algae and lots of green fuzzy stuff on the bottom of our rocks with eco blast and since then we have not seen any of our gold fish, we did see the koi’s and they got scared and disappeared. what are we doing wrong? Answer: The reason…