If/when you do replace the gravel be sure to replace it a little at a time because Beneficial bacteria live in the gravel and break down waste/remove ammonia and nitrite and if you were to replace all of the gravel at one your tank would go into a mini-cycle and you would see an ammonia spike that could harm/kill your fish.
Oh and I forgot to add I use eco-complete and it looks very natural but it is more like a dirt than a gravel.
Oh and I forgot to add I use eco-complete and it looks very natural but it is more like a dirt than a gravel.
