Id use the old sand will help avoid a bacteria bloom (harmless btw) also will give a little boost to bb filtrarion.
Ugh i hate dealing with the eheim heaters but still use them. Just try and match the temp on the new water....like doing a big wc.
I usually does ridx on the 1st night will be cloudiness will last longwr than normal
Ugh i hate dealing with the eheim heaters but still use them. Just try and match the temp on the new water....like doing a big wc.
I usually does ridx on the 1st night will be cloudiness will last longwr than normal