I'll get some pics soon. Why would the concrete make the PH that high, I thought that it would be pretty neutral? If I didn't get "into" the aquaculture just yet, what would be a good DIY ( I'm cheap, but.... handy) filter system, if I just raised some fish?
I appreciate the ideas, I've had similar ones but it's good to hear for reinforcement.
Keep em' coming.
Your concrete is old so it may not be much of an issue, as previously stated.
The first thing you have to do is drain it, clean it and see what you have. Could be that, that is it!
If you have to coat the inside, you will probably have to sand blast is first. A potable water urethane specifically for concrete tanks would be on the list, but pretty expensive, so we wont go there.
Building a few cages for BG and YP, and letting a few CC roam the depths freely to scarf up the pellets that got away comes to mind. Maybe a few Suckers also, to kinda help.
Too early to try figure out a filter system. Trying to clean the bottom of a square tank that big is pretty difficult without it being designed to do so.
What bottom feeder, or other aquatic critter/plant/bug/thing would be effective at greatly reducing the solids build up that is going to happen here?
