When to start outdoor container ponds?

[CSnyder00]

I use sponge filters. Less to go wrong and surface agitation helps keep mosquitoes out and keeps it oxygenated and cooler in the hot sun.

These tubs are 30 gallons, so one 4 inch poret sponge each probably isn’t big enough, right?

 

[Frank Cowherd]

I do not use any filtration in my wadding pool ponds, not that they would not be a benefit. . They are shallow and do not really need filtration. The down sides are they are shallow and heat up and cool down quickly with the weather. And you cannot keep 3 inch or larger fish in them as the raccoons will just stay in the pool until they catch them all. They do not bother smaller fish.

BTW, I checked and found daphnia in all the ponds I put them in in mid April. So the daphnia survived the cold water I put them in.

 

[mchambers]

These tubs are 30 gallons, so one 4 inch poret sponge each probably isn’t big enough, right?

I think it would be fine.

 

[FishEggs]

I only had one in my tub last summer. Seemed to do just fine. I guess some of it depends on how much air flow you have through it but i think you will be fine with just one per tub.

 

[b considine]

These tubs are 30 gallons, so one 4 inch poret sponge each probably isn’t big enough, right?

Stephan Tanner recommended a 5" cubefilter for my 30 gallon aquarium.
I, however, run two.
Blaise

 

[FishEggs]

Here is mine last summer. Its a 30g tub.

I actually left everything over winter in place to see what would happen. It felt like it froze solid at one point. I pulled what was left out a few weeks ago and found that the hornwort i had survived. There were little clams throughout all the dead ludwigia stems. And a lot of black muck on the bottom from all the leaves that blew into it.

 

[b considine]

I hope to get my stock tank started this weekend. Fish usually go in Memorial Day weekend (gives me an extra day to futz around).

Blaise