
Originally Posted by
Urban Aquaria
Your under gravel filter (UGF) is basically breaking down the ADA aquasoil and pulling in all the soil dust and nutrients, and then spewing them directly into the water column.... that results in all the soil particles constantly being circulated around the tank, and all the excess ammonia and nutrients are flooding the water column.
The bacteria solution you dosed is also contributing to the bacterial bloom too, alot of excess bacteria feeding on the excess nutrients.
In such a setup, you will need to do a series of water changes to manually remove the suspended particles. Large and frequent water changes will also help to flush out most of the excess nutrients flooding the water column too.
Not sure if you did some research before starting the tank though, UGF filtration systems are usually not recommended to be used with ADA aquasoil in particular, mainly due to the faster breakdown of the soil and the very high level of nutrients released initially (which your shrimps have no use for anyways)... the soil is actually meant to grow plants, not really designed for shrimps, just happens that it can buffer pH for CRS so some shrimp breeders and keepers use it.
Nowadays, there are actually many other brands of aquasoil (ie. RAC, Mosura, BW, Up Aqua etc) which are designed specifically for shrimp and those types of soil don't break down as much and have very low nutrient levels, yet can also buffer the water pH as well. They would be more suitable for use with UGF systems.
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